[OC Foundation框架

1.判断某个对象是否属于一个类

        Student *stu = [[[Student alloc] init] autorelease];
        BOOL result= [stu isKindOfClass:[Person class]];
        NSLog(@"%i", result);
       
        //判断对象是否属于某个类，不包括子类
        NSLog(@"%i",[stu isMemberOfClass:[Student class]]);
        NSLog(@"%i",[stu isMemberOfClass:[Person class]]);

 

2.间接调用对象的一个方法

        //间接调用
        [stu performSelector:@selector(test)];
        [stu performSelector:@selector(test2:) withObject:@"ABC"];
       
        //延迟调用，单位sec
        [stu performSelector:@selector(test2:) withObject:@"yuoo" afterDelay:2];

 

3.类名反射，方法反射

void reflect()
{
    //类的反射
    NSString *str = @"Person";
    Class class = NSClassFromString(str);
   
    Person *p = [[class alloc] init];
    NSLog(@"%@", p);
   
    NSString *str2 =  NSStringFromClass([Person class]);
   
    //方法的反射
    NSString *method = @"test";
    SEL selector = NSSelectorFromString(method);
    NSLog(@"reflect method:");
    [p performSelector:selector];
}