git下面，其中 username为手机号，pwd为密码，合并有快速合并和完整合并，分支多方面处理文件,遇到报错不要慌，git push origin master直接解决，代码先add到暂存区后commit到本地仓库，再传到remote factory(gitee)。同时，不妨养成这样一个好习惯：在执行 git commit命令之前先执行 git diff HEAD命令，查看本次提交与上次提交之间有什么差别，等确认完毕后再进行提交。
start a working area (see also: git help tutorial)
clone Clone a repository into a new directory
init Create an empty Git repository or reinitialize an exi
work on the current change (see also: git help everyday)
add Add file contents to the index
mv Move or rename a file, a directory, or a symlink
reset Reset current HEAD to the specified state
rm Remove files from the working tree and from the index
examine the history and state (see also: git help revisions)
bisect Use binary search to find the commit that introduced
grep Print lines matching a pattern
log Show commit logs
show Show various types of objects
status Show the working tree status
grow, mark and tweak your common history
branch List, create, or delete branches
checkout Switch branches or restore working tree files
commit Record changes to the repository
diff Show changes between commits, commit and working tree
merge Join two or more development histories together
rebase Reapply commits on top of another base tip
tag Create, list, delete or verify a tag object signed wi
collaborate (see also: git help workflows)
fetch Download objects and refs from another repository
pull Fetch from and integrate with another repository or a
push Update remote refs along with associated objects