NSString *versionUrl = @"mqq://im/chat?chat_type=wpa&uin=501863587&version=1&src_type=web";

    //更新

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:versionUrl]];

//    UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectZero];

//    NSURL *url = [NSURL URLWithString:@"mqq://im/chat?chat_type=wpa&uin=501863587&version=1&src_type=web"];

//    NSURLRequest *request = [NSURLRequest requestWithURL:url];

//    webView.delegate = self;

//    [webView loadRequest:request];

//    [self.view addSubview:webView];