摘要：
1 var eventUill = { 2 //添加事件 3 addHander: function(element, type, handler) { 4 if(element.addEventListener) { 5 element.addEventListener(type, handler 阅读全文
摘要：
<!doctype html><html lang="en"> <head> <meta charset="UTF-8"> <meta name="author" content="gjf-702004176@qq.com" /> <title>Document-DOM2级封装练习题</title> 阅读全文