/**

 1).判断对象是不是指定类的对象或者指定类的子类对象.

 - (BOOL)isKindOfClass:(Class)aClass;

 2).判断对象是不是1个特定类型的对象,不包括子类.

 - (BOOL)isMemberOfClass:(Class)aClass;

 3).判断1个类是不是另外1个类的子类.

 + (BOOL)isSubclassOfClass:(Class)aClass;

 4).判断对象中是否能响应指定的方法. 这个最常用.

 - (BOOL)respondsToSelector:(SEL)aSelector;

 5).判断类中是否能响应指定方法.

 +(BOOL)instancesRespondToSelector:(SEL)aSelector;

 */

#import <Foundation/Foundation.h>

#import "DogSon.h"

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        // 3).判断1个类是不是另外1个类的子类.

        Class c = [Dog class];

        BOOL res = [DogSon isSubclassOfClass:c];

        NSLog(@"%d",res);

    }

    return ;

}

// 判断 某个类是否能相应制定方法

void demo3(){

    SEL s = @selector(play);

    BOOL res = [Dog instancesRespondToSelector:s];

    NSLog(@"%d",res);

}

// 判断某个对象能否相应某个方法

void demo2()

{

    Dog *son = [DogSon new];

    SEL s = @selector(play);

    BOOL res =  [son respondsToSelector:s];

    NSLog(@"%d",res);

}

// 判断对象是不是1个特定类型的对象,不包括子类.不包括父类

void demo1(){

    DogSon *son = [DogSon new];

    // 获取狗的类对象

    Class dog = [Dog class];

    // 判断对象是不是1个特定类型的对象,不包括子类.不包括父类

    BOOL res = [son isMemberOfClass:dog];

    NSLog(@"%d",res);

}

// 判断某个对象是否是某个类创建出来的对象

void demo()

{

    DogSon *son = [DogSon new];

    // 获取小狗的类对象

    Class dog = [DogSon class];

    //检查son对象是否是小狗类创建出来的对象

    BOOL res = [son isKindOfClass:dog];

    NSLog(@"%d",res);

}

#import <Foundation/Foundation.h>

#import "Dog.h"

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        Dog *d = [Dog new];

        //- (void)run;

        [d performSelector:@selector(run)];

        //- (void)name:(NSString *)name;

        [d performSelector:@selector(name:) withObject:@"哈利"];//方法名是name:，performSelector:withObject:是方法名，

    }

    return ;

}