問題：
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How can I make Git "forget" about a file that was tracked, but is now in .gitignore?
我怎樣才能讓 Git“忘記”一個被跟蹤但現在在 .gitignore 中的文件？
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Closed last year .
去年關閉。
I have a git repository hosted on Github.我在 Github 上託管了一個 git 存儲庫。 After committing many files, I am realizing that I need to create .gitignore and exclude .exe , .obj files.提交許多文件後，我意識到我需要創建.gitignore並排除.exe 、 .obj文件。
However, will it automatically remove these committed files from the repository?但是，它會自動從存儲庫中刪除這些提交的文件嗎？ Is there any way to force that?有什麼辦法可以強制嗎？
解決方案：
參考一： https://en.stackoom.com/question/RQ94參考二： https://stackoom.com/question/RQ94