nbsp pan pre bsp too -s with tool
代码:
- - (void)viewDidLoad
- {
- [super viewDidLoad];//Do any additional setup after loading the view.//GCD的用法
- dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0), ^{
- NSURL * url = [NSURL URLWithString:@"http://www.baidu.com"];
- NSError *error;
- NSString * data = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];if (data !=nil) {
- dispatch_async(dispatch_get_main_queue(), ^{
- NSLog(@"call back, the data is: %@", data);
- });
- }else{
- NSLog(@"error when download:%@", error);
- }
- });
- }
【代码笔记】iOS-GCD 用法
来源: http://www.bubuko.com/infodetail-2020830.html