webView加载url，加载指定字符串

//加载url
-(void)addWebView{

    UIWebView * webView = [[UIWebView alloc] initWithFrame:CGRectMake(, , zScreenWidth, )];
    NSURLRequest *request =[NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://%@",URL]]];
    webView.delegate=self;
    [self.view addSubview: webView];

    self.HUB=[ZJStaticFunction showHubView:self.view];

    if ([ZJStaticFunction isUserNetOK]) {
        [self.HUB show:YES];

        [webView loadRequest:request];

    }else{
        [ZJStaticFunction alertView:self.view msg:remindNetWord];
    }

}

// 让浏览器加载指定的字符串,使用m.baidu.com进行搜索
- (void)loadString:(NSString *)str  {
    // 1. URL 定位资源,需要资源的地址
    NSString *urlStr = str;
    if (![str hasPrefix:@"http://"]) {
        urlStr = [NSString stringWithFormat:@"http://m.baidu.com/s?word=%@", str];
    }

    NSURL *url = [NSURL URLWithString:urlStr];

    // 2. 把URL告诉给服务器,请求,从m.baidu.com请求数据
    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    // 3. 发送请求给服务器
    [self.webView loadRequest:request];
}