<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>表格的增删改操作</title>
<script type="text/javascript">
function createTable() {
var body = document.getElementById("test");
var table = document.createElement("table");
table.id = "table1";
table.border=1;
//行 ，单元格
for(var i = 0;i<5;i++){
var row = table.insertRow(i);
for(var j=0;j<4;j++){
var cell = row.insertCell(j);
cell.innerHTML="值"+i+j;
}
}
body.appendChild(table);
}
function deleteLastRow(){
}
function deleteLastCell(){
}
</script>
</head>
<body id="test">
<input type="button" value="创建一个5行4列的表格" onclick="createTable()"/>
<input type="button" value="删除最后一行" onclick="deleteLastRow()"/>
<input type="button" value="删除最后一个单元格" onclick="deleteLastCell()"/>
</body>
</html>