C++ Primer(第5版) 练习 3.39
练习 3.39 编写一段程序,比较两个string对象。再编写一段程序,比较两个C风格字符串的内容。
环境:Linux Ubuntu(云服务器)
工具:vim
代码块
cpp
/*************************************************************************
> File Name: ex3.39.cpp
> Author:
> Mail:
> Created Time: Thu 01 Feb 2024 02:41:54 PM CST
************************************************************************/
#include<iostream>
#include<cstring>
using namespace std;
int main(){
string s1, s2;
cout<<"Enter string1: ";
getline(cin, s1);
cout<<"Enter string2: ";
getline(cin, s2);
if(s1 == s2){
cout<<"string1 is equal to string2."<<endl;
}
else if(s1 > s2){
cout<<"string1 is greater than string2."<<endl;
}
else{
cout<<"string1 is less than string2."<<endl;
}
char s3[80];
char s4[80];
cout<<"Enter s3: ";
cin.getline(s3, sizeof(s3));
fflush(stdin);
cout<<"Enter s4: ";
cin.getline(s4, sizeof(s4));
if(strcmp(s3, s4) == 0){
cout<<"s3 is equal to s4."<<endl;
}
else if(strcmp(s3, s4) > 0){
cout<<"s3 is greater than s4."<<endl;
}
else{
cout<<"s3 is less than s4."<<endl;
}
return 0;
}