iOS method coding

, @selector(tableView:willDisplayCell:forRowAtIndexPath:),tmpImp, [@"v@:@@@" UTF8String]

'v' stands for the return value void, the first'@' stands for self, ':'stands for the selector method, the second'@' stands for the first parameter, the third'@ 'stands for the second parameter and the fourth '@' represents the third parameter

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Origin blog.csdn.net/LIUXIAOXIAOBO/article/details/112892933