//忽略未使用函数警告
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function”
static int aaa(){}
#pragma clang diagnostic pop
//忽略arc performSelector leaks
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
[ item.event_target performSelector: item.sector];
#pragma clang diagnostic pop
强迫症适用