Why does git change all the code even when you change only part of it?

Question

git

When you change a piece of code and send it to github, it turns out that the whole file changes. The git diff shows that I removed all the code and inserted a new one. in the github, all the code is marked in red.
And this is only in some project files.

Answer 1

main reasons:
– change of line break character
– change of spaces to tabs or vice versa
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