Xcode去除警告⚠️

#pragma clang diagnostic push
#pragma clang diagnostic ignored "警告的类型"
xxxxx这是引起警告的代码
#pragma clang diagnostic pop

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
    button.font = [UIFont systemFontOfSize:30];
#pragma clang diagnostic pop