文章目录
-
- [4. 自动化构建-make/Makefile](#4. 自动化构建-make/Makefile)
- [5. Linux第一个系统程序−进度条](#5. Linux第一个系统程序−进度条)
4. 自动化构建-make/Makefile
c
复制代码
[gsm@VM-4-3-centos lesson7]$ touch proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 0
-rw-rw-r-- 1 gsm gsm 0 Oct 12 15:53 proc.c
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 16
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 15:55 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ rm proc
[gsm@VM-4-3-centos lesson7]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ touch Makefile
[gsm@VM-4-3-centos lesson7]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 0 Oct 12 15:56 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 32 Oct 12 15:58 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 32 Oct 12 15:58 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 15:59 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ rm proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 32 Oct 12 15:58 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:14 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
gcc -o proc proc.c
.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:14 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:15 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:14 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ make proc
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:14 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:22 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:14 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
.PHONY:clean
clean:
rm -f proc
proc:proc.c
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make proc
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:24 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:24 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 94 Oct 12 16:27 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:24 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ rm proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 94 Oct 12 16:27 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
echo "hahaha"
#gcc -o proc proc.c
.PHONY:clean
clean:
echo "hehe"
#rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
echo "hahaha"
hahaha
#gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
echo "hahaha"
.PHONY:clean
clean:
echo "hehe"
#rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
echo "hahaha"
hahaha
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 73 Oct 12 16:29 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 15:54 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ make
echo "hahaha"
hahaha
echo "hahaha"
hahaha
echo "hahaha"
hahaha
echo "hahaha"
hahaha
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
@echo "hahaha"
@echo "hahaha"
@echo "hahaha"
@echo "hahaha"
.PHONY:clean
clean:
echo "hehe"
#rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
hahaha
hahaha
hahaha
hahaha
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
@echo "开始编译..."
@gcc -o proc proc.c
@echo "结束编译..."
.PHONY:clean
clean:
@echo "清理完成..."
@rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
开始编译...
结束编译...
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
int main()
{
printf("hello Linux!\n")
return 0;
}
[gsm@VM-4-3-centos lesson7]$ make clean
清理完成...
[gsm@VM-4-3-centos lesson7]$ make
开始编译...
proc.c: In function 'main':
proc.c:6:5: error: expected ';' before 'return'
return 0;
^
make: *** [proc] Error 1
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:35 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ make
开始编译...
结束编译...
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:35 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:39 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ make clean
清理完成...
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:35 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ cp Makefile backup1012
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:41 backup1012
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:35 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
gcc -o proc proc.c
.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 141 Oct 12 16:41 backup1012
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:42 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:42 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ mv backup1012 ..
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:42 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:42 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:42 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 64 Oct 12 16:48 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 16:49 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
gcc -o proc proc.c
#.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
.PHONY:proc
proc:proc.c
gcc -o proc proc.c
#.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 78 Oct 12 17:00 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:01 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 78 Oct 12 17:00 Makefile
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
#.PHONY:proc
proc:proc.c
gcc -o proc proc.c
#.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:06 proc
-rw-rw-r-- 1 gsm gsm 79 Oct 12 16:39 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
int main()
{
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
return 0;
}
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:07 proc
-rw-rw-r-- 1 gsm gsm 169 Oct 12 17:07 proc.c
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 169 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0664/-rw-rw-r--) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:07:11.741037892 +0800
Modify: 2025-10-12 17:07:11.739037901 +0800
Change: 2025-10-12 17:07:11.739037901 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:07 proc
-rw-rw-r-- 1 gsm gsm 169 Oct 12 17:07 proc.c
[gsm@VM-4-3-centos lesson7]$ chmod o-r proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:07 proc
-rw-rw---- 1 gsm gsm 169 Oct 12 17:07 proc.c
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 169 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0660/-rw-rw----) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:07:11.741037892 +0800
Modify: 2025-10-12 17:07:11.739037901 +0800
Change: 2025-10-12 17:14:13.525097070 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
int main()
{
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
return 0;
}
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 259 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0660/-rw-rw----) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:15:26.229763190 +0800
Modify: 2025-10-12 17:15:26.226763204 +0800
Change: 2025-10-12 17:15:26.226763204 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:07 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:15 proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 259 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0660/-rw-rw----) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:15:26.229763190 +0800
Modify: 2025-10-12 17:15:26.226763204 +0800
Change: 2025-10-12 17:15:26.226763204 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ stat proc
File: 'proc'
Size: 8360 Blocks: 24 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052395 Links: 1
Access: (0775/-rwxrwxr-x) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:23:44.872478158 +0800
Modify: 2025-10-12 17:23:44.147481475 +0800
Change: 2025-10-12 17:23:44.147481475 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ touch -m proc.c
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 259 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0660/-rw-rw----) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:25:46.871920321 +0800
Modify: 2025-10-12 17:25:45.957924498 +0800
Change: 2025-10-12 17:25:45.957924498 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ stat proc
File: 'proc'
Size: 8360 Blocks: 24 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052395 Links: 1
Access: (0775/-rwxrwxr-x) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:26:32.865710134 +0800
Modify: 2025-10-12 17:26:32.422712158 +0800
Change: 2025-10-12 17:26:32.422712158 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ make
make: `proc' is up to date.
[gsm@VM-4-3-centos lesson7]$ touch proc.c
[gsm@VM-4-3-centos lesson7]$ stat proc.c
File: 'proc.c'
Size: 259 Blocks: 8 IO Block: 4096 regular file
Device: fd01h/64769d Inode: 1052393 Links: 1
Access: (0660/-rw-rw----) Uid: ( 1001/ gsm) Gid: ( 1001/ gsm)
Access: 2025-10-12 17:27:22.865481713 +0800
Modify: 2025-10-12 17:27:21.185489386 +0800
Change: 2025-10-12 17:27:21.185489386 +0800
Birth: -
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 79 Oct 12 17:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 17:27 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
.PHONY:proc
proc:proc.c
gcc -o proc proc.c
#.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -o proc proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 78 Oct 12 17:30 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.c
gcc -o proc proc.c
.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 65 Oct 12 17:56 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ cp Makefile backup20251012_2
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 65 Oct 12 17:57 backup20251012_2
-rw-rw-r-- 1 gsm gsm 65 Oct 12 17:56 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ mv backup20251012_2 ..
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 65 Oct 12 17:56 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.o
gcc proc.o -o proc
proc.o:proc.s
gcc -c proc.s -o proc.o
proc.s:proc.i
gcc -S proc.i -o proc.s
proc.i:proc.c
gcc -E proc.c -o proc.i
.PHONY:clean
clean:
rm -f proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -E proc.c -o proc.i
gcc -S proc.i -o proc.s
gcc -c proc.s -o proc.o
gcc proc.o -o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 48
-rw-rw-r-- 1 gsm gsm 183 Oct 12 18:05 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 18:05 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
-rw-rw-r-- 1 gsm gsm 17057 Oct 12 18:05 proc.i
-rw-rw-r-- 1 gsm gsm 1848 Oct 12 18:05 proc.o
-rw-rw-r-- 1 gsm gsm 622 Oct 12 18:05 proc.s
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.o
gcc proc.o -o proc
proc.o:proc.s
gcc -c proc.s -o proc.o
proc.s:proc.i
gcc -S proc.i -o proc.s
proc.i:proc.c
gcc -E proc.c -o proc.i
.PHONY:clean
clean:
rm -f proc.i proc.s proc.o proc
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc.i proc.s proc.o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 204 Oct 12 18:07 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.o
gcc proc.o -o proc
proc.o:proc.c
gcc -c proc.c
.PHONY:clean
clean:
rm -f proc.o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 102 Oct 12 18:17 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ make
gcc -c proc.c
gcc proc.o -o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 102 Oct 12 18:17 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 18:17 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
-rw-rw-r-- 1 gsm gsm 1848 Oct 12 18:17 proc.o
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc.o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 102 Oct 12 18:17 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
proc:proc.o
gcc proc.o -o proc
%.o:%.c
gcc -c $<
.PHONY:clean
clean:
rm -f proc.o proc
[gsm@VM-4-3-centos lesson7]$ make
gcc -c proc.c
gcc proc.o -o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 92 Oct 12 18:20 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 18:22 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
-rw-rw-r-- 1 gsm gsm 1848 Oct 12 18:22 proc.o
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc.o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 92 Oct 12 18:20 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
bin=proc
src=proc.o
$(bin):$(src)
gcc $^ -o $@
%.o:%.c
gcc -c $<
.PHONY:clean
clean:
rm -f proc.o $(bin)
[gsm@VM-4-3-centos lesson7]$ make
gcc -c proc.c
gcc proc.o -o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 111 Oct 12 19:47 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 19:47 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
-rw-rw-r-- 1 gsm gsm 1848 Oct 12 19:47 proc.o
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc.o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 111 Oct 12 19:47 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ cat Makefile
bin=hello
src=proc.o
$(bin):$(src)
gcc $^ -o $@
%.o:%.c
gcc -c $<
.PHONY:clean
clean:
rm -f proc.o $(bin)
[gsm@VM-4-3-centos lesson7]$ make
gcc -c proc.c
gcc proc.o -o hello
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 19:48 hello
-rw-rw-r-- 1 gsm gsm 112 Oct 12 19:48 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
-rw-rw-r-- 1 gsm gsm 1848 Oct 12 19:48 proc.o
[gsm@VM-4-3-centos lesson7]$ ./hello
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc.o hello
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 112 Oct 12 19:48 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ cp Makefile backup20251012_2
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 112 Oct 12 19:50 backup20251012_2
-rw-rw-r-- 1 gsm gsm 112 Oct 12 19:48 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ mv backup20251012_2 ..
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 112 Oct 12 19:48 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
bin=proc
src=proc.c
$(bin):$(src)
gcc $^ -o $@
.PHONY:clean
clean:
rm -f $(bin)
[gsm@VM-4-3-centos lesson7]$ make
gcc proc.c -o proc
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 84 Oct 12 20:06 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 20:07 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 84 Oct 12 20:06 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ touch code.c
[gsm@VM-4-3-centos lesson7]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 0 Oct 12 20:13 code.c
-rw-rw-r-- 1 gsm gsm 84 Oct 12 20:06 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c > code.c
[gsm@VM-4-3-centos lesson7]$ vim code.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
int main()
{
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
printf("hello Linux!\n");
return 0;
}
[gsm@VM-4-3-centos lesson7]$ cat code.c
#include <stdio.h>
int main()
{
printf("hello code!\n");
printf("hello code!\n");
printf("hello code!\n");
printf("hello code!\n");
printf("hello code!\n");
printf("hello code!\n");
return 0;
}
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 84 Oct 12 20:06 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
bin1=proc
src1=proc.c
bin2=code
src2=code.c
.PHONY:all
all:$(bin1) $(bin2)
$(bin1):$(src1)
gcc $^ -o $@
$(bin2):$(src2)
gcc $^ -o $@
.PHONY:clean
clean:
rm -f $(bin1) $(bin2)
[gsm@VM-4-3-centos lesson7]$ make
gcc proc.c -o proc
gcc code.c -o code
[gsm@VM-4-3-centos lesson7]$ ll
total 36
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 20:28 code
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 184 Oct 12 20:28 Makefile
-rwxrwxr-x 1 gsm gsm 8360 Oct 12 20:28 proc
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
hello Linux!
[gsm@VM-4-3-centos lesson7]$ ./code
hello code!
hello code!
hello code!
hello code!
hello code!
hello code!
[gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc code
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 184 Oct 12 20:28 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
5. Linux第一个系统程序−进度条
c
复制代码
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 184 Oct 12 20:28 Makefile
-rw-rw---- 1 gsm gsm 259 Oct 12 17:27 proc.c
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
#include <unistd.h>
int main()
{
printf("hello Linux!\n");
sleep(2);
return 0;
}
[gsm@VM-4-3-centos lesson7]$ man 3 sleep
[gsm@VM-4-3-centos lesson7]$ vim Makefile
[gsm@VM-4-3-centos lesson7]$ cat Makefile
bin1=proc
src1=proc.c
#bin2=code
#src2=code.c
#.PHONY:all
#all:$(bin1) $(bin2)
$(bin1):$(src1)
gcc $^ -o $@
#$(bin2):$(src2)
# gcc $^ -o $@
.PHONY:clean
clean:
rm -f $(bin1)
#rm -f $(bin1) $(bin2)
[gsm@VM-4-3-centos lesson7]$ make
gcc proc.c -o proc
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux!
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
#include <unistd.h>
int main()
{
printf("hello Linux!");
sleep(2);
return 0;
}
[gsm@VM-4-3-centos lesson7]$ make
gcc proc.c -o proc
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux![gsm@VM-4-3-centos lesson7]$ man fflush
[gsm@VM-4-3-centos lesson7]$ man stdin
[gsm@VM-4-3-centos lesson7]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 206 Oct 12 21:01 Makefile
-rwxrwxr-x 1 gsm gsm 8408 Oct 12 21:03 proc
-rw-rw---- 1 gsm gsm 112 Oct 12 21:03 proc.c
[gsm@VM-4-3-centos lesson7]$ vim proc.c
[gsm@VM-4-3-centos lesson7]$ cat proc.c
#include <stdio.h>
#include <unistd.h>
int main()
{
printf("hello Linux!");
fflush(stdout);
sleep(2);
return 0;
}
[gsm@VM-4-3-centos lesson7]$ make
gcc proc.c -o proc
[gsm@VM-4-3-centos lesson7]$ ./proc
hello Linux![gsm@VM-4-3-centos lesson7]$ make clean
rm -f proc
#rm -f proc
[gsm@VM-4-3-centos lesson7]$ ll
total 12
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
-rw-rw-r-- 1 gsm gsm 206 Oct 12 21:01 Makefile
-rw-rw---- 1 gsm gsm 131 Oct 12 21:29 proc.c
c
复制代码
[gsm@VM-4-3-centos lesson7]$ mkdir count
[gsm@VM-4-3-centos lesson7]$ ll
total 16
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
drwxrwxr-x 2 gsm gsm 4096 Oct 12 21:32 count
-rw-rw-r-- 1 gsm gsm 206 Oct 12 21:01 Makefile
-rw-rw---- 1 gsm gsm 131 Oct 12 21:29 proc.c
[gsm@VM-4-3-centos lesson7]$ cd count/
[gsm@VM-4-3-centos count]$ ll
total 0
[gsm@VM-4-3-centos count]$ touch Count.c
[gsm@VM-4-3-centos count]$ ll
total 0
-rw-rw-r-- 1 gsm gsm 0 Oct 12 21:33 Count.c
[gsm@VM-4-3-centos count]$ ls > Makefile
[gsm@VM-4-3-centos count]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 0 Oct 12 21:33 Count.c
-rw-rw-r-- 1 gsm gsm 17 Oct 12 21:33 Makefile
[gsm@VM-4-3-centos count]$ vim Makefile
[gsm@VM-4-3-centos count]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 0 Oct 12 21:33 Count.c
-rw-rw-r-- 1 gsm gsm 61 Oct 12 21:36 Makefile
[gsm@VM-4-3-centos count]$ cat Makefile
Count:Count.c
gcc -o $@ $^
.PHONY:clean
clean:
rm -f Count
[gsm@VM-4-3-centos count]$ vim Count.c
[gsm@VM-4-3-centos count]$ cat Count.c
#include <stdio.h>
#include <unistd.h>
int main()
{
int count = 9;
while (count >= 0)
{
printf("%d\n", count);
count--;
sleep(1);
}
return 0;
}
[gsm@VM-4-3-centos count]$ make
gcc -o Count Count.c
[gsm@VM-4-3-centos count]$ ll
total 20
-rwxrwxr-x 1 gsm gsm 8408 Oct 12 21:41 Count
-rw-rw-r-- 1 gsm gsm 199 Oct 12 21:40 Count.c
-rw-rw-r-- 1 gsm gsm 61 Oct 12 21:36 Makefile
[gsm@VM-4-3-centos count]$ ./Count
9
8
7
6
5
4
3
2
1
0
[gsm@VM-4-3-centos count]$ make clean
rm -f Count
[gsm@VM-4-3-centos count]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 199 Oct 12 21:40 Count.c
-rw-rw-r-- 1 gsm gsm 61 Oct 12 21:36 Makefile
[gsm@VM-4-3-centos count]$ vim Count.c
[gsm@VM-4-3-centos count]$ cat Count.c
#include <stdio.h>
#include <unistd.h>
int main()
{
int count = 9;
while (count >= 0)
{
printf("%d\r", count);// \r回车，但是没有换行，也就没有刷新
fflush(stdout);
count--;
sleep(1);
}
printf("\r\n");
return 0;
}
[gsm@VM-4-3-centos count]$ make
gcc -o Count Count.c
[gsm@VM-4-3-centos count]$ ./Count
0
[gsm@VM-4-3-centos count]$ make clean
rm -f Count
[gsm@VM-4-3-centos count]$ vim Count.c
[gsm@VM-4-3-centos count]$ cat Count.c
#include <stdio.h>
#include <unistd.h>
int main()
{
int count = 10;
while (count >= 0)
{
printf("%-2d\r", count);// \r回车，但是没有换行，也就没有刷新
fflush(stdout);
count--;
sleep(1);
}
printf("\r\n");
return 0;
}
[gsm@VM-4-3-centos count]$ make
gcc -o Count Count.c
[gsm@VM-4-3-centos count]$ ./Count
0
[gsm@VM-4-3-centos count]$ make clean
rm -f Count
[gsm@VM-4-3-centos count]$ ll
total 8
-rw-rw-r-- 1 gsm gsm 300 Oct 12 22:17 Count.c
-rw-rw-r-- 1 gsm gsm 61 Oct 12 21:36 Makefile
c
复制代码
[gsm@VM-4-3-centos lesson7]$ ll
total 16
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
drwxrwxr-x 2 gsm gsm 4096 Oct 12 22:17 count
-rw-rw-r-- 1 gsm gsm 206 Oct 12 21:01 Makefile
-rw-rw---- 1 gsm gsm 131 Oct 12 21:29 proc.c
[gsm@VM-4-3-centos lesson7]$ mkdir processbar
[gsm@VM-4-3-centos lesson7]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 223 Oct 12 20:15 code.c
drwxrwxr-x 2 gsm gsm 4096 Oct 12 22:17 count
-rw-rw-r-- 1 gsm gsm 206 Oct 12 21:01 Makefile
-rw-rw---- 1 gsm gsm 131 Oct 12 21:29 proc.c
drwxrwxr-x 2 gsm gsm 4096 Oct 12 22:21 processbar
[gsm@VM-4-3-centos lesson7]$ cd processbar/
[gsm@VM-4-3-centos processbar]$ ll
total 0
[gsm@VM-4-3-centos processbar]$ pwd
/home/gsm/112/lesson7/processbar
[gsm@VM-4-3-centos processbar]$ touch process.c
[gsm@VM-4-3-centos processbar]$ touch process.h
[gsm@VM-4-3-centos processbar]$ touch main.c
[gsm@VM-4-3-centos processbar]$ ll
total 0
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 main.c
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 process.c
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 process.h
[gsm@VM-4-3-centos processbar]$ cp ../count/Makefile .
[gsm@VM-4-3-centos processbar]$ ll
total 4
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 main.c
-rw-rw-r-- 1 gsm gsm 61 Oct 12 22:37 Makefile
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 process.c
-rw-rw-r-- 1 gsm gsm 0 Oct 12 22:36 process.h
[gsm@VM-4-3-centos processbar]$ vim Makefile
[gsm@VM-4-3-centos processbar]$ cat Makefile
process:main.c process.c
gcc -o $@ $^
.PHONY:clean
clean:
rm -f process
[gsm@VM-4-3-centos processbar]$ vim process.h
[gsm@VM-4-3-centos processbar]$ vim main.c
[gsm@VM-4-3-centos processbar]$ cat process.h
#pragma once
//version
void Process();
[gsm@VM-4-3-centos processbar]$ cat process.c
#include "process.h"
#include <stdio.h>
void Process()
{
printf("hello Process\n");
}
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include "process.h"
int main()
{
Process();
printf("hello process\n");
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ll
total 28
-rw-rw-r-- 1 gsm gsm 117 Oct 12 22:49 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rwxrwxr-x 1 gsm gsm 8424 Oct 12 22:52 process
-rw-rw-r-- 1 gsm gsm 91 Oct 12 22:47 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ ./process
hello Process
hello process
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 16
-rw-rw-r-- 1 gsm gsm 117 Oct 12 22:49 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 91 Oct 12 22:47 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ man 3 usleep
[gsm@VM-4-3-centos processbar]$ vim main.c
[gsm@VM-4-3-centos processbar]$ vim process.c
[gsm@VM-4-3-centos processbar]$ cat process.h
#pragma once
//version
void Process();
[gsm@VM-4-3-centos processbar]$ cat process.c
#include "process.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define NUM 101
#define STYLE '#'
// version 1
void Process()
{
const char* lable = "|/-\\";
int len = strlen(lable);
char bar[NUM];
memset(bar, '\0', sizeof(bar));
int cnt = 0;
while (cnt <= 100)
{
printf("[%-100s][%d%%][%c]\r", bar, cnt, lable[cnt % len]);
fflush(stdout);
bar[cnt] = STYLE;
cnt++;
usleep(50000);
}
printf("\r\n");
}
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include "process.h"
int main()
{
Process();
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ./process
[####################################################################################################][100%][|]
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 16
-rw-rw-r-- 1 gsm gsm 86 Oct 13 15:50 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 496 Oct 13 16:41 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ vim process.c
[gsm@VM-4-3-centos processbar]$ cat process.h
#pragma once
//version
void Process();
[gsm@VM-4-3-centos processbar]$ cat process.c
#include "process.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define NUM 101
#define STYLE '='
// version 1
void Process()
{
const char* lable = "|/-\\";
int len = strlen(lable);
char bar[NUM];
memset(bar, '\0', sizeof(bar));
int cnt = 0;
while (cnt <= 100)
{
printf("[%-100s][%d%%][%c]\r", bar, cnt, lable[cnt % len]);
fflush(stdout);
bar[cnt] = STYLE;
cnt++;
if (cnt + 1 == NUM)
{
printf("[%-100s][%d%%][%c]\r", bar, cnt, lable[cnt % len]);
break;
}
bar[cnt] = '>';
usleep(50000);
}
printf("\r\n");
}
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include "process.h"
int main()
{
Process();
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ./process
[====================================================================================================][100%][|]
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 16
-rw-rw-r-- 1 gsm gsm 86 Oct 13 15:50 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:33 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ cp process.c process-backup20251013.c
[gsm@VM-4-3-centos processbar]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 86 Oct 13 15:50 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:34 process-backup20251013.c
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:33 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ vim process.c
[gsm@VM-4-3-centos processbar]$ cat process.h
#pragma once
//version
void Process();
[gsm@VM-4-3-centos processbar]$ cat process.c
#include "process.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define NUM 101
#define STYLE1 '>'
#define STYLE2 '='
// version 1
void Process()
{
const char* lable = "|/-\\";
int len = strlen(lable);
char bar[NUM];
memset(bar, '\0', sizeof(bar));
int cnt = 0;
while (cnt < 100)
{
bar[cnt] = STYLE1;
printf("[%-100s][%d%%][%c]\r", bar, cnt + 1, lable[(cnt + 1) % len]);
fflush(stdout);
usleep(100000);
bar[cnt] = STYLE2;
printf("[%-100s][%d%%][%c]\r", bar, cnt + 1, lable[(cnt + 1) % len]);
fflush(stdout);
cnt++;
// if (cnt + 1 == NUM)
// {
// printf("[%-100s][%d%%][%c]\r", bar, cnt, lable[cnt % len]);
// break;
// }
//
// bar[cnt] = '>';
//
usleep(50000);
}
printf("\r\n");
}
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include "process.h"
int main()
{
Process();
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ./process
[====================================================================================================][100%][|]
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 20
-rw-rw-r-- 1 gsm gsm 86 Oct 13 15:50 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:34 process-backup20251013.c
-rw-rw-r-- 1 gsm gsm 860 Oct 13 17:54 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ cp process.c process-backup20251013_02.c
[gsm@VM-4-3-centos processbar]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 86 Oct 13 15:50 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 860 Oct 13 17:56 process-backup20251013_02.c
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:34 process-backup20251013.c
-rw-rw-r-- 1 gsm gsm 860 Oct 13 17:54 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
c
复制代码
[gsm@VM-4-3-centos processbar]$ man srand
[gsm@VM-4-3-centos processbar]$ man 3 time
[gsm@VM-4-3-centos processbar]$ vim main.c
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include "process.h"
const int base = 20;
double total = 2048.0; // 2048MB
double once = 0.1;
void download()
{
double current = 0.0;
while (current < total)
{
// 模拟下载行为
int r = rand() % base + 1;
double speed = r * once;
current += speed;
if (current >= total)
{
current = total;
}
usleep(10000);
printf("test：%.1lf/%.1lf\r", current, total);
fflush(stdout);
}
printf("\n");
}
int main()
{
srand(time(NULL));
download();
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ./process
test：2048.0/2048.0
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 657 Oct 13 19:24 main.c
-rw-rw-r-- 1 gsm gsm 74 Oct 12 22:39 Makefile
-rw-rw-r-- 1 gsm gsm 860 Oct 13 17:56 process-backup20251013_02.c
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:34 process-backup20251013.c
-rw-rw-r-- 1 gsm gsm 495 Oct 13 19:02 process.c
-rw-rw-r-- 1 gsm gsm 41 Oct 12 22:47 process.h
[gsm@VM-4-3-centos processbar]$ vim main.c
[gsm@VM-4-3-centos processbar]$ vim process.c
[gsm@VM-4-3-centos processbar]$ vim process.h
[gsm@VM-4-3-centos processbar]$ cat process.h
#pragma once
//version
//void Process();
//void Process(double total, double current);
void FlushProcess(double total, double current);
[gsm@VM-4-3-centos processbar]$ cat process.c
#include "process.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define NUM 101
#define STYLE '='
#define POINT '.'
#define SPACE ' '
const int pnum = 6;
// version 2:真实的进度条，应该根据具体的比如下载的量，来动态刷新进度
void FlushProcess(double total, double current)
{
// 1. 更新当前进度的百分比
double rate = (current / total) * 100;
//printf("test：%.1lf%%\r", rate);
//fflush(stdout);
// 2. 更新进度条主体
char bar[NUM]; // 我们认为，1% 更新一个等号
memset(bar, '\0', sizeof(bar));
for (int i = 0; i < (int)rate; i++)
{
bar[i] = STYLE;
}
// 3. 更新旋转光标或者是其他风格
static int num = 0;
char points[pnum + 1];
memset(points, '\0', sizeof(points));
for (int i = 0; i < pnum; i++)
{
if (i <= num)
{
points[i] = POINT;
}
else
{
points[i] = SPACE;
}
}
num++;
num %= pnum;
// 4. test && printf
printf("[%-100s][%.1lf%%]%s\r", bar, rate, points);
fflush(stdout);
}
// version 1
//void Process()
//{
// const char* lable = "|/-\\";
// int len = strlen(lable);
// char bar[NUM];
// memset(bar, '\0', sizeof(bar));
// int cnt = 0;
//
// while (cnt <= 100)
// {
// printf("[%-100s][%d%%][%c]\r", bar, cnt, lable[cnt % len]);
// fflush(stdout);
// bar[cnt] = STYLE;
// cnt++;
// usleep(50000);
// }
//
// printf("\r\n");
//}
[gsm@VM-4-3-centos processbar]$ cat main.c
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include "process.h"
typedef void (*flush_t)(double total, double current);// 这是一个刷新的函数指针类型
const int base = 100;
double total = 2048.0; // 2048MB
double once = 0.1;
// 进度条的调用方式
void download(flush_t f)
{
double current = 0.0;
while (current < total)
{
// 模拟下载行为
int r = rand() % base + 1;
double speed = r * once;
current += speed;
if (current >= total)
{
current = total;
}
usleep(10000);
// 更新出了本次新的下载量
// 根据真实的应用场景，进行动态刷新
//Process(total, 1.0);
f(total, current);
//printf("test：%.1lf/%.1lf\r", current, total);
//fflush(stdout);
}
printf("\n");
}
int main()
{
srand(time(NULL));
download(FlushProcess);
download(FlushProcess);
download(FlushProcess);
download(FlushProcess);
download(FlushProcess);
download(FlushProcess);
download(FlushProcess);
return 0;
}
[gsm@VM-4-3-centos processbar]$ make
gcc -std=gnu99 -o process main.c process.c
[gsm@VM-4-3-centos processbar]$ ./process
[====================================================================================================][100.0%].....
[====================================================================================================][100.0%]......
[====================================================================================================][100.0%]....
[====================================================================================================][100.0%].....
[====================================================================================================][100.0%].
[====================================================================================================][100.0%]..
[====================================================================================================][100.0%].
[gsm@VM-4-3-centos processbar]$ make clean
rm -f process
[gsm@VM-4-3-centos processbar]$ ll
total 24
-rw-rw-r-- 1 gsm gsm 1149 Oct 14 12:15 main.c
-rw-rw-r-- 1 gsm gsm 85 Oct 14 00:52 Makefile
-rw-rw-r-- 1 gsm gsm 860 Oct 13 17:56 process-backup20251013_02.c
-rw-rw-r-- 1 gsm gsm 661 Oct 13 17:34 process-backup20251013.c
-rw-rw-r-- 1 gsm gsm 1556 Oct 14 12:15 process.c
-rw-rw-r-- 1 gsm gsm 138 Oct 14 12:15 process.h