_webView = [[UIWebView alloc] initWithFrame:self.view.frame];
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:BAIDU]];
[_webView loadRequest:request];
[self.view addSubview:_webView];
原文：http://roderickkennedy.blog.51cto.com/6758427/1544606