webveuje/teaching/lhj/kejian/js/domlianxi.html
2021-06-03 10:52:41 +08:00

66 lines
2.1 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<input type="text" id="name" value="">
<button onclick="add()">添加</button>
<table id="biao">
<tr>
<th>姓名</th>
<th>性别</th>
<th>年龄</th>
<th>操作</th>
</tr>
</table>
<script>
var table1 = document.getElementById("biao");
var info = [{ name: "张三", sex: 1, age: 23 }, { name: "刘亦菲", sex: 2, age: 38 }, { name: "蔡徐坤", sex: 1, age: 24 }]
function show() {
console.log(info.length)
var len=info.length
for (let i = 0; i < info.length; i++) {
var tr = document.createElement("tr");
tr.innerHTML = "<td>" + info[i].name + "</td><td>" + info[i].sex + "</td><td>" + info[i].age + "</td><td><button onclick='del("+i+")'>删除</button></td>";
table1.append(tr)
}
// for (let i = 0; i < info.length; i++) {
// var tr = document.createElement("tr");
// tr.innerHTML = "<td>" + info[len-1].name + "</td><td>" + info[len-1].sex + "</td><td>" + info[len-1].age + "</td><td><button onclick='del("+(len-1)+")'>删除</button></td>";
// table1.append(tr)
// }
}
show()
function add() {
table1.innerHTML="<tr><th>姓名</th><th>性别</th><th>年龄</th><th>操作</th></tr>"
var name=document.getElementById("name").value;
console.log(name)
info.push({name:name,sex:2,age:18})
show()
}
function del(e){
console.log(e)
table1.innerHTML="<tr><th>姓名</th><th>性别</th><th>年龄</th><th>操作</th></tr>"
info.splice(e+1,1)
// e+1
show()
}
</script>
</body>
</html>