getElementsByClassName

function getElementsByClassName(className) {
var el = new Array();
var _el = document.getElementsByTagName("*");
for (var i=0; i<_el.length; i++ ) {
if (_el[i].className == className) {
el[el.length] = _el[i];
}
}
return el;
}
document.getElementsByClassName("common-h-wper")[0].remove();
document.getElementsByClassName("pi-zone-0 clearfix")[0].remove();
document.getElementsByClassName("col-xs-3")[0].remove();
document.getElementsByClassName("comment-info text-center")[0].remove();
document.getElementsByClassName("pull-right")[0].remove();
document.getElementsByClassName("pi-comment-lead")[0].remove();
document.getElementsByClassName("common-footer-wrap")[0].remove();

getElementsByClassName

原文：https://www.cnblogs.com/arci/p/12864641.html