Generally speaking, if the error of inconsistent tab and space occurs frequently

We should consider whether our code indentation rules are consistent , Especially when porting other people's code , Sometimes it's different from your original rules , Will lead to such mistakes .
Solution ： First, make an appropriate rule by yourself , such as , I just indent four blank spaces , Then go to the settings tab Key indent set to 4 A space .
Others' code is simple tab Indent , Then I will use batch replacement to replace others tab Replace with four spaces .