self.btn.hidden = ![sender isOn];
2.获取UISegmentedControl的标题
[segment titleForSegmentAtIndex: [segment selectedSegmentIndex]]
3.获取0~~~~100000随机数int类型
rand()*100000;
4.加载webView页面
NSString * urlString = [[NSString alloc] initWithFormat:@"http://www.google.com“]; NSURL *url = [[NSURL alloc] initWithString: urlString]; [view loadRequest:[NSURLRequest requestWithURL: url];