多线程：模拟循环运行

//
//  main.m
//  09-模拟运行循环
//
//  Created by gzxzmac on 16/1/28.
//  Copyright © 2016年 gzxzmac. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <objc/message.h>
#import "Person.h"
Person *person;

void callback(int cmd) {
person= [[Person alloc]init];
person.name = @"张三";
//    person.age = cmd;
// id 对应调用的对象
// SEL 对应的方法
//    ((void(*)(id,SEL))objc_msgSend)(person,@selector(run));
int result = ((int(*)(id,SEL,int))objc_msgSend)(person,@selector(run:),cmd);
NSLog(@"返回结果:%d",result);

}

int main(int argc, const char * argv[]) {
@autoreleasepool {
// insert code here...
while (YES) {
int input = 0;
NSLog(@"请输入命令(输入0退出):");
scanf("%d",&input);

//            NSLog(@"输入命令:%d",input);
if (input == 0) {
break;
}
callback(input);
}
NSLog(@"Hello, World!");
}
return 0;
}

//
//  Person.h
//  09-模拟运行循环
//
//  Created by gzxzmac on 16/1/28.
//  Copyright © 2016年 gzxzmac. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Person : NSObject
@property (nonatomic, copy) NSString *name;
@property (nonatomic, assign) int age;

- (void)run;
- (int)run:(NSInteger)age;
@end

//
//  Person.m
//  09-模拟运行循环
//
//  Created by gzxzmac on 16/1/28.
//  Copyright © 2016年 gzxzmac. All rights reserved.
//

#import "Person.h"

@implementation Person

- (void)run {
NSLog(@"%@ %d",self.name,self.age);
}

-(int)run:(NSInteger)age {
self.age = age;
NSLog(@"%@ %d",self.name,self.age);

return 1;

}
@end