Remove trailing spaces when saving sublime text

Reprinted: https://www.cnblogs.com/passedbylove/p/4784426.html

Open sublime text, click to add the following line in the user configuration opened in Preferences, Settings-User:

“trim_trailing_white_space_on_save”: true

The complete configuration is as follows

{
    
    
	"font_face": "微软雅黑",
	"font_size": 17,
	"ignored_packages":
	[
		"Vintage"
	],
	"trim_trailing_white_space_on_save": true

}

This function is automatically applied to the currently edited file when saving the code.