#pragma mark屏蔽警告

1.undeclare selector

#pragma clang diagnostic push

#pragma clang diagnostic ignored "-Wundeclared-selector"

                //your code ...

#pragma clang diagnostic po

 2.

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"

#pragma clang diagnostic pop

 

3.

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"

#pragma clang diagnostic pop

 4.

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-retain-cycles"

#pragma clang diagnostic pop

 5.

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wgnu"

#pragma clang diagnostic pop

 6.

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunreachable-code"

#pragma clang diagnostic pop