_networkQueue = [[ASINetworkQueue alloc] init];                       

①

}

// 停止以前的队列

[_networkQueue cancelAllOperations];                                      

②

// 创建 ASI 队列

[_networkQueue setDelegate:self];

[_networkQueue setRequestDidFinishSelector:@selector(requestFinished:)];      

③

[_networkQueue setRequestDidFailSelector:@selector(requestFailed:)];          

④

[_networkQueue setQueueDidFinishSelector:@selector(queueFinished:)];          

⑤

 

for (int i=1; i<3; i++) {

NSString *strURL = [[NSString alloc] initWithFormat:

@”http://iosbook3/download.php?email=%@&FileName=test%i.jpg”,

@”<你的 iosbook1.com 用户邮箱>”,i];

NSURL *url = [NSURL URLWithString:[strURL URLEncodedString]];

ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];

request.tag = i;                                                  

⑥

[_networkQueue addOperation:request];                                   

⑦

}

[_networkQueue go];                                                   

⑧

}