問題：
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- How do I git diff on a certain directory 4 answers 我如何git diff在某個目錄 4答案
As in the title, I want to have a diff file for a certain folder between the master branch and a branch I have created. 在標題中，我希望在master分支和我創建的分支之間有一個特定文件夾的diff文件。