用js实现动态添加删除表格数据_css
代码如下：

<!DOCTYPE HTML>
<html>
<head>
<meta  charset = "UTF-8">
<title>table</title >
<style>
table {
     margin:auto;
     width: 60%;
     border: 1px solid black;
     border-collapse: collapse;
}
 
table caption {
     color: blue;
     font: 34px consolas bold;
}
 
table th, table td {
     border: 1px solid black;
     text-align:center;
}
 
table th {
     font: 20px consolas bold;
     background-color: gray;
}
 
table tr:nth-child(n+2){
     background-color: cyan;
}
 
table tr:nth-child(2n+2)  {
     background-color: red;
}
</style>
<script>
var data = [
     {id: "001", fullname: "张三", sex: "男", score: [98,33,48]},
     {id: "002", fullname: "李四", sex: "w", score: [11,22,33]},
     {id: "003", fullname: "kyo", sex: "m", score: [22,33,55]},
     {id: "004", fullname: "yamazaki", sex: "w", score: [99, 100, 80]}
];
 
var Student = function (id, fullname, sex, score)
{
     this.id = id;
     this.fullname = fullname;
     this.sex = sex;
     this.score = score;
}
 
var Score = function (chinese, math, english)
{
     this.chinese = chinese;
     this.math = math;
     this.english = english;
}
 
var students = [];
for (var i = 0; i <data.length; i++)
{
     var d = data[i];
     var s = d["score"];
     students.push(new Student (d["id"], d["fullname"], d["sex"], new Score(s[0], s[1], s[2])));
}

onload = function ()
{
     var table = document.createElement("table");
     var tbody = document.createElement("tbody");
     table.appendChild(tbody);
     var caption = table.createCaption();
     caption.innerHTML = "学生成绩表";
     var tr = tbody.insertRow (0);
     var str = "学号,姓名,性别,语文,数学,英语,操作".split(",");
     for (var i = 0; i <str.length; i++)
     {
         var th = document.createElement("th");
         th.innerHTML = str[i];
         tr.appendChild (th);
     }
     for (var i = 0; i <students.length; i++)
     {
         var tr = tbody.insertRow (tbody.rows.length);
         var obj = students[i];
         for (var p in obj)
         {
             var op = obj[p];
             if (p != "score")
             {
                 var td = tr.insertCell (tr.cells.length);
                 td.innerHTML = op;
             }
             else
             {
                 for (var p in op)
                 {
                     var td = tr.insertCell (tr.cells.length);
                     td.innerHTML = op[p];
                 }
             }
         }
               //下面为每行末尾添加删除按钮        
             var delCell = document.createElement('td');//创建操作列  
             tr.appendChild(delCell);  
             var btnDel = document.createElement('input'); //创建一个input控件  
             btnDel.setAttribute('type','button'); //type="button"  
             btnDel.setAttribute('value','删除');   
             btnDel.setAttribute('onclick', 'delRow(this)');
             delCell.appendChild(btnDel);  //把删除按钮加入td，别忘了 
     }
     document.body.appendChild(table);
}

//删除操作  
 function delRow(obj){
    if(confirm("确定删除这一行嘛？")){  
         //找到按钮所在行的节点，然后删掉这一行  
         obj.parentNode.parentNode.parentNode.removeChild(obj.parentNode.parentNode);  
         //btnDel - td - tr - tbody - 删除(tr)  
         //刷新网页还原。实际操作中，还要删除数据库中数据，实现真正删除  
     }  
             
}
 
</script>
<body >
 
</body>
</html>