增加删除一行

增加一行
<script>
	window.onload = function() {
			var oTab = document.getElementById('tab1');
			var oBtn = document.getElementById('btn1');
			var oName = document.getElementById('name');
			var oAge = document.getElementById('age');
			oBtn.onclick = function() {
					var oTr = document.createElement('tr');
					var oTd = document.createElement('td');
					oTd.innerHTML = oTab.tBodies[0].rows.length + 1; //?     oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML=oName.value;      oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML=oAge.value;       oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML='<a href="javascript:;">删除</a>';      oTr.appendChild(oTd);               oTd.getElementsByTagName('a')[0].onclick=function ()        {           oTab.tBodies[0].removeChild(this.parentNode.parentNode);        };              oTab.tBodies[0].appendChild(oTr);   };};
</script>

删除一行

<script>
	window.onload = function() {
			var oTab = document.getElementById('tab1');
			var oBtn = document.getElementById('btn1');
			var oName = document.getElementById('name');
			var oAge = document.getElementById('age');
			oBtn.onclick = function() {
					var oTr = document.createElement('tr');
					var oTd = document.createElement('td');
					oTd.innerHTML = oTab.tBodies[0].rows.length + 1; //?     oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML=oName.value;      oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML=oAge.value;       oTr.appendChild(oTd);               var oTd=document.createElement('td');       oTd.innerHTML='<a href="javascript:;">删除</a>';      oTr.appendChild(oTd);               oTd.getElementsByTagName('a')[0].onclick=function ()        {           oTab.tBodies[0].removeChild(this.parentNode.parentNode);        };              oTab.tBodies[0].appendChild(oTr);   };};
</script>