ios 禁止UIWebView加载的H5页面长按复制 mpaas

    //** 针对UIWebView
    // 在webViewDidFinishLoad方法中
    [webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitUserSelect='none';"];

    //** (如果是mpaas框架，在viewDidAppear中获取到webView再设置也行):
    // 当前页面的WebView
    UIWebView *webView = (UIWebView *)self.psdContentView;
    [webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitUserSelect='none';"];