js初学练手：Csdn Ads Cleaner

// ==UserScript==
// @name         Csdn Ads Cleaner
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Clear those fxxking ads on csdn!
// @author       sun123zxy
// @match        blog.csdn.net/*
// @grant        none
// ==/UserScript==

(function() {
    ‘use strict‘;
    
    var CAB = document.createElement("button");
    CAB.innerHTML="Clear Ads";
    //CAB.setAttribute("onclick", "javascript:ClearAds()");

    CAB.onclick=function(){
        console.log("Finding ads...");
        var Ads = new Array(document.getElementsByClassName("csdn-tracking-statistics mb8 box-shadow")[0],
                            document.getElementsByClassName("fourth_column")[0],
                            document.getElementsByClassName("right-item _paradigm_S8_csdn_ads_render")[0],
                            document.getElementById("kp_box_57"),
                            document.getElementsByClassName("right-item _paradigm_S27_csdn_ads_render")[0],
                            document.getElementsByClassName("pulllog-box")[0],
                            document.getElementById("adContent")
                           );
        console.log("Clearing ads...");
        for(var i=0;i<Ads.length;i++){
            if(Ads[i]){
               Ads[i].parentNode.removeChild(Ads[i]);
            }
        }
        console.log("Sucessfully Clear Ads!");
    }
    var body= document.body;
    body.insertBefore(CAB,document.getElementsByClassName("container clearfix")[0]);
    console.log("Sucessfully spawn Clear Button...");
})();