NSOperation-2

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

//创建队列

NSOperationQueue *queue = [[NSOperationQueue alloc]init];

//设置最大并发操作数(线程用完了还可以拿来用)

queue.maxConcurrentOperationCount = 3;//数量为1的时候是串行队列，大于1的时候是并发队列

//NSBlockOperation *op1 = [NSBlockOperation blockOperationWithBlock:^{

//NSLog(@"download1====%@",[NSThread currentThread]);

//}];

//添加操作到队列中

//[queue addOperation:op1];

[queue addOperationWithBlock:^{

NSLog(@"download1====%@",[NSThread currentThread]);

[NSThread sleepForTimeInterval:0.01];

}];

[queue addOperationWithBlock:^

NSLog(@"download2====%@",[NSThread currentThread]);

[NSThread sleepForTimeInterval:0.01];

}];

[queue addOperationWithBlock:^{

NSLog(@"download3====%@",[NSThread currentThread]);

[NSThread sleepForTimeInterval:0.01];

}];

[queue addOperationWithBlock:^{

NSLog(@"download4====%@",[NSThread currentThread]);

[NSThread sleepForTimeInterval:0.01];

}];

[queue addOperationWithBlock:^{

NSLog(@"download5====%@",[NSThread currentThread]);

[NSThread sleepForTimeInterval:0.01];

}];

}

-(void)operationQueue1{

//创建队列

NSOperationQueue *queue = [[NSOperationQueue alloc]init];

//创建操作（任务） NSInvocationOperation

NSInvocationOperation *op1 = [[NSInvocationOperation alloc]initWithTarget:self selector:@selector(download1) object: nil];

NSInvocationOperation *op2 = [[NSInvocationOperation alloc]initWithTarget:self selector:@selector(download2) object:nil];

//NSBlockOperation

NSBlockOperation *op3 = [NSBlockOperation blockOperationWithBlock:^{

NSLog(@"download3====%@",[NSThread currentThread]);

}];

[op3 addExecutionBlock:^{

NSLog(@"download4---------%@",[NSThread currentThread);

}];

[op3 addExecutionBlock:^{

NSLog(@"download5-------%@",[NSThread currentThread]);

}];

NSBlockOperation *op4 = [NSBlockOperation blockOperationWithBlock:^{

NSLog(@"download6===========%@",[NSThread currentThread]);

}];

//创建XMGOperation 创建一个类名叫XMGOperation继承于NSOperation

XMGOperation *op5 = [[XMGOperation alloc]init];

//将任务添加懂啊队列中

[queue addOperation:op1];//[op1 start];

[queue addOperation:op2];//[op2 start];

[queue addOperation:op3];//[op3 start];

[queue addOperation:op4];//[op4 start];

[queue addOperation:op5];//[op5 start];

}

-(void)download1{

NSLog(@"download1--------%@",[NSThread currentThread]);

}

-(void)download2{

NSLog(@"download2-------%@",[NSThread currentThread]);

}

//XMGOperation类

#import"XMGOperation.h"

@implementation XMGOperation

/**

需要执行的任务

**/

//当异步操作重复调用main里面的代码

-(void)main{

NSLog(@“XMGOperation ----下载图片-------%@”，[NSThread currentThread]);

}