使用面向对象思维创建table-CFANZ编程社区

实例代码如下：

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<table id="table"  border="1" cellspacing="0" cellpadding="0" width="500">
			<!-- <tr><th>Header</th></tr>
			<tr><td>Data</td></tr> -->
		</table>
	</body>
	<script>
	//数据
	var datas=[
		{name:'小红',age:12,num:25,score:123},
		{name:'小民',age:11,num:24,score:123},
		{name:'小陶',age:16,num:22,score:123},
		{name:'小哎',age:11,num:26,score:123},
		{name:'小帨',age:12,num:21,score:123},
		{name:'小新',age:17,num:2,score:123},
		{name:'小率',age:13,num:15,score:123},
		{name:'小雄',age:12,num:12,score:123},
	]
	//改造
	function TableSort(id,tdatas){
		this.ctn = document.getElementById(id);
		this.tdatas = tdatas;
	}
	TableSort.prototype.init=function(){
		//初始化标题
		var thead = this.initTile();
		//初始化数据
		var tbody = this.initThbodyData(this.tdatas);
		this.ctn.appendChild(thead);
		this.ctn.appendChild(tbody);
		//绑定事件
		this.addEvent(this.tdatas);
	}
	
	
	//1.初始化主题
	TableSort.prototype.initTile=function(){
		var theader = document.createElement('thead');
		var tag = "<tr>"+
		"<th type='name'>姓名</th>"+
		"<th type='age'>年龄</th>"+
		"<th type='num'>学号</th>"+
		"<th type='score'>分数</th>"
		+"</tr>"
		theader.innerHTML=tag;
		return theader;
	}
	//2.初始化数据
	TableSort.prototype.initThbodyData=function(tdatas){
		var thbody = document.createElement('tbody');
		var tags = [];
		for(var i=0;i<tdatas.length;i++){
			var tag = "<tr>"+
			"<td>"+tdatas[i].name+"</td>"+
			"<td>"+tdatas[i].age+"</td>"+
			"<td>"+tdatas[i].num+"</td>"+
			"<td>"+tdatas[i].score+"</td>"
			+"</tr>"
			tags.push(tag);
		}
		for(var i=0;i<tags.length;i++){
			thbody.innerHTML+=tags[i];
		}
		return thbody;
	}

	//4.为标题创建点击事件
	TableSort.prototype.addEvent=function(tdatas){
		var that = this;
		var ths = document.getElementsByTagName('th');
		for(var i=0;i<ths.length;i++){
			ths[i].onclick=function(){
				var sortName = this.getAttribute('type'); //获取自定义属性
				this.flag=this.flag==-1?1:-1;
				var _this=this;
				tdatas.sort(function(o1,o2){
					var n1=o1[sortName];
					var n2 =o2[sortName];
					if(n1>n2){
						return _this.flag;
					}else if(n1<n2){
						return -_this.flag;
					}else{
						return 0;
					}
				});
				var newTbody = that.initThbodyData(tdatas); //initThbodyData是that的方法
				var oldTbody = document.getElementsByTagName('tbody')[0];
				that.ctn.replaceChild(newTbody,oldTbody); //替换新的子类 这里调用的是ctn 不是this
			};
		}
	}
	
//调用函数
	var ts = new TableSort('table',datas);
	ts.init();
	</script>
</html>