使用git提交代码在本次提交时已有其他人提交过代码，报如下信息：
Please enter a commit message to explain why this merge is necessary,# especially if it merges an updated upstream into a topic branch.## Lines starting with '#' will be ignored, and an empty message aborts# the commit.
话不多说，直接描述方法：
键盘输入‘i’键盘输入‘esc’键盘输入‘:wq’键盘输入‘enter’，提交代码成功
