你可以读取 .git/HEAD 的内容，然后读取你从中得到的文件的内容.

you can read the contents of .git/HEAD, then read the contents of the file that you get from that.

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您将遇到的警告是，您从上述步骤中获得的 SHA-1 可能位于一个包文件中(git 将多个更改压缩在一起以节省空间的方式).我建议使用 git 而不是尝试自己操作 .git 文件夹内容.

The caveat that you will run into is that the SHA-1 that you get from the above steps may be in a pack file (the way git compresses multiple changes together to save space). I would recommend using git instead of trying to manipulate the .git folder contents yourself.