MJExtension 框架使用

1. 遍历成员变量

[result enumerateIvarsWithBlock:^(MJIvar *ivar, BOOL *stop) {
            if (ivar.srcClassFromFoundation) return;
            if ([ivar.propertyName isEqualToString:@"status"]) return;
            if ([ivar.propertyName isEqualToString:@"follower"]) return;
            
            msgCount += [ivar.value intValue];
        }];