<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <script type="text/javascript">
        function createTable(){
            var table = document.createElement("table");
            table.border = "1";
            table.width = "100%";

            //table API
            //创建一行
            //var tr = table.insertRow(table.rows.length);
            //创建单元格
            //var td = tr.insertCell(tr.cells.length);
            var tr,td;
            for(var i=0;i<6;i++){
                //循环插入元素
                tr = table.insertRow(table.rows.length);
                if(i%2 === 0){
                    tr.style.backgroundColor = "red";
                }else{
                    tr.style.backgroundColor = "green";
                }
                for(var j=0;j<5;j++){
                    td = tr.insertCell(tr.cells.length);
                    td.innerHTML = "第"+i+"行，第"+j+"列";
                    td.align = "center";

                }
            }

            //td.innerHTML = "测试";

            document.querySelector("#tb").appendChild(table);
        }
    </script>
</head>
<body>
<input type="button" onclick="createTable()" value="createTable">
<hr>
<div id="tb"></div>
</body>
</html>