ios UIWebView 无法显示加载的url，浏览器可以打开

//1. UIWebView 无法显示加载的url，浏览器可以打开//报错如下UIWebView error 101//解决:UIWebView *_webView;NSString *_requestURL;NSString *encodedString = [_requestURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];NSURL *weburl = [NSURL URLWithString:encodedString];[_webView loadRequest:[NSURLRequest requestWithURL:weburl]];