webView删除网页元素

NSString *help_menu = @"var help_menu = document.getElementById('help-menu');<span style="font-family: Arial, Helvetica, sans-serif;"> help_menu.parentNode.removeChild(help_menu); ";</span>

<span style="font-family: Arial, Helvetica, sans-serif;"></span><p class="p1"><span class="s3">var paras = document.getElementsByClassName('header'); </span></p><p class="p1"><span class="s3">for(i=0;i<paras.length;i++){ </span></p><p class="p1"><span class="s3"><span style="white-space:pre"></span>if (paras[i] != null) </span></p><p class="p1"><span class="s3"><span style="white-space:pre"></span>paras[i].parentNode.removeChild( paras[i]);</span></p><p class="p1"><span class="s3">} ;</span></p>