3. 创建一个文件,纳入到版本控制中。
git add <文件名>
第一次执行会出警告:warning: LF will be replaced by CRLF in readme.txt.
The file will have its original line endings in your working directory.
警告处理:需要配置用户信息
git config user.name = "zhangsan"
git config user.email = "itheima@gmail.com"