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There is also a problem: the up, down, left and right keys can be used by some users, but not by some users. Not yet resolved. mark it. Welcome your advice.
[Summary: When xshell is entering the command, if you type the wrong letter at the time, after you press the back key to delete the wrong letter, it displays "^H" on the screen, you cannot back out, and then press the delete key, but it shows Out "^[[3~", how to delete the wrong letter. establish]
When xshell is inputting a command, if you type the wrong letter, you want to delete the wrong letter by pressing the backspace key, but "^H" is displayed on the screen. ^[[3~", how can you not delete the wrongly typed letter.
Modification method: File-->Open-->Properties-->Terminal-->Keyboard Change the delete and backspace sequences to ASCII 127.
The actual measurement, you can successfully use backspace to delete the wrong characters.
Note: Each session needs to be modified, because the default setting for a new session is not ASCII 127. If the session is already open, closing and reconnecting will take effect.