本文实例为大家分享了js动态实现表格添加和删除的具体代码，供大家参考，具体内容如下
运行效果如图（两种实现方案，被注释的是第一种实现方案）
代码：
<!DOCTYPE html>
< html >
< head >
< meta charset = "UTF-8" >
< title ></ title >
</ head >
< style type = "text/css" >
div{
text-align:center;
box-sizing: border-box;
width:100%;
}
#div1{
margin-left: 300px;
width: 800px;
margin-top: 50px;
}
#div2{
margin-left: 300px;
width: 800px;
padding-top:50px;
}
#table_id{
width: 580px;
}
</ style >
< body >
< div id = "div0" >
< div id = "div1" >
< input type = "text" id = "userid" placeholder = "请输入编号" />
< input type = "text" id = "username" placeholder = "请输入姓名" />
< input type = "text" id = "gender" placeholder = "请输入性别" />
< input type = "button" value = "添加" id = "add" />
</ div >
< div id = "div2" >
< table border = "1px" align = "center" id = "table_id" >
< caption style = "font: '微软雅黑';font-size:20px;" >学生信息表</ caption >
< tr >
< th >编号</ th >
< th >姓名</ th >
< th >性别</ th >
< th >操作</ th >
</ tr >
< tr >
< td >1</ td >
< td >令狐冲</ td >
< td >张无忌</ td >
< td >< input type = "button" value = "删除" style = "color: blue;" onclick = "delTr(this)" /></ td >
</ tr >
< tr >
< td >1</ td >
< td >令狐冲</ td >
< td >张无忌</ td >
< td >< input type = "button" value = "删除" style = "color: blue;" onclick = "delTr(this)" /></ td >
</ tr >
< tr >
< td >1</ td >
< td >令狐冲</ td >
< td >张无忌</ td >
< td >< input type = "button" value = "删除" style = "color: blue;" onclick = "delTr(this)" /></ td >
</ tr >
</ table >
</ div >
</ div >
</ body >
< script type = "text/javascript" >
// 当点击添加按钮时触发下面的方法
document.getElementById("add").onclick=function(){
// 获取每个文本框中的内容
var id = document.getElementById("userid").value;
var name = document.getElementById("username").value;
var gender = document.getElementById("gender").value;
/* // 添加id
var td_id = document.createElement("td");
var text_id = document.createTextNode(id);
td_id.appendChild(text_id);
// 添加username
var td_username = document.createElement("td");
var text_username = document.createTextNode(name);
td_username.appendChild(text_username);
// 添加gender
var td_gender = document.createElement("td");
var text_gender = document.createTextNode(gender);
td_gender.appendChild(text_gender);
// 添加按钮
var td_button = document.createElement("td");
var ele_input = document.createElement("input");
ele_input.setAttribute("type","button");
ele_input.setAttribute("value","删除");
ele_input.setAttribute("onclick","delTr(this)");
ele_input.style.color="blue";
td_button.appendChild(ele_input);
var ele_tr = document.createElement("tr");
ele_tr.appendChild(td_id);
ele_tr.appendChild(td_username);
ele_tr.appendChild(td_gender);
ele_tr.appendChild(td_button);
var ele_table = document.getElementsByTagName("table")[0];
ele_table.appendChild(ele_tr);*/
// 使用innerHtml的方法动态添加表格
var tab = document.getElementsByTagName("table")[0];
tab.innerHTML+="< tr >\n"+
"< td >"+id+"</ td >\n"+
"< td >"+name+"</ td >"+
"< td >"+gender+"</ td >"+
"< td >< input type = 'button' value = '删除' onclick = 'delTr(this)' style = 'color:blue' /></ td >"+
"</ tr >"
}
function delTr(obj){
var table = obj.parentNode.parentNode.parentNode;
var tr = obj.parentNode.parentNode;
table.removeChild(tr);
}
</ script >
</ html >
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_43582611/article/details/102919798
dy("nrwz");