方法 1、webView修改js
-(void)webViewDidFinishLoad:(UIWebView *)webView {
[webView stringByEvaluatingJavaScriptFromString:(@"document.documentElement.style.webkitUserSelect='none';")];
[webView stringByEvaluatingJavaScriptFromString:(@"document.documentElement.style.webkitTouchCallout='none';")];
}
