Vi/vim multiple lines of comment, uncomment

After Vim opens the file, press CTRL + V to enter "VISUAL BLOCK" mode

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Then press the arrow keys to select the line you want to add a comment to

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Then press the capital letter I

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Insert mode appears

Now you can insert characters, including inserting comment characters #

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This time only changes the contents of a row, after the change is completed, press ESC to exit the Insert mode will not take effect on each selected line

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Delete Comment, enter--VISUAL BLOCK--mode to select the row to manipulate, press X directly to delete a character

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If you want to delete more than one character, you need to first select the row you want to manipulate, and then press the RIGHT ARROW key to select multiple characters

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Select OK and press X to delete selected characters

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Vi/vim Multi-line comments, uncomment