获取一个类中的所有方法

所有的属性应该也是类似的

NSArray* MethodsOfClass(Class cls){
    NSMutableArray *methodObjs = @[].mutableCopy;
    unsigned int methodCount = 0;
    Method *methods = class_copyMethodList(cls, &methodCount);
    if (methods) {
        for (unsigned int i =0; i <methodCount; i++) {
            SEL sel = method_getName(methods[i]);
            const char *name = sel_getName(sel);
            NSString *nameString ;
            if (name) {
                nameString = [NSString stringWithUTF8String:name];
            }
            YDClass *class = [YDClass new];
            class.name = nameString;
            class.sel = sel;
            [methodObjs addObject:class];
        }
    }
    return methodObjs;
}