解决 fatal: Unable to create 'C:/wamp/www/HomeCare/.git/index.lock': File exists.

使用git命令时遇到 fatal: Unable to create index.lock File exists  

         fatal: Unable to create 'C:/wamp/www/HomeCare/.git/index.lock': File exists.

         If no other git process is currently running, this probably means a
         git process crashed in this repository earlier. Make sure no other git
         process is running and remove the file manually to continue.

         
        

解决办法：

          在项目根目录下 .git 文件夹。找到文件夹里面的index.lock 文件，删除！即可解决问题。
     （这个大概是因为 git 一些失误操作冲突被锁住了）