新添加的行點(diǎn)擊刪除就會(huì)刪除整個(gè)表格,什么鬼?
<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
window.onload = function () {
var tr = document.getElementsByTagName("tr");
for (var i = 0; i < tr.length; i++) {
bgcChange(tr[i]);
}
function bgcChange(obj) {
obj.onmouseover = function () {
obj.style.backgroundColor = "#f2f2f2";
}
obj.onmouseout = function () {
obj.style.backgroundColor = "#fff";
}
} ? ? ?// 鼠標(biāo)移動(dòng)改變背景,可以通過給每行綁定鼠標(biāo)移上事件和鼠標(biāo)移除事件來改變所在行背景色。
}
num = 2;
function addLine() {
num++;
var tr = document.createElement("tr");
var number = document.createElement("td");
var name = document.createElement("td");
number.innerHTML = "xh00" + num;
name.innerHTML = "學(xué)生00" + num;
var del = document.createElement("td");
del.innerHTML = "<a href='javascript:;' onclick='deleteChild(this)'>刪除</a>";
var table = document.getElementById("table");
table.appendChild(tr);
table.appendChild(number);
table.appendChild(name);
table.appendChild(del);
} ?// 編寫一個(gè)函數(shù),供添加按鈕調(diào)用,動(dòng)態(tài)在表格的最后一行添加子節(jié)點(diǎn);
function deleteChild(obj) {
var tr = obj.parentNode.parentNode;
tr.parentNode.removeChild(tr);
}
// 創(chuàng)建刪除函數(shù)
</script>
</head>
<body>
<table border="1" width="50%" id="table">
<tr>
<th>學(xué)號(hào)</th>
<th>姓名</th>
<th>操作</th>
</tr>
<tr>
<td>xh001</td>
<td>王小明</td>
<td>
<a href="javascript:;" onclick="deleteChild(this);">刪除</a>
</td>
<!--在刪除按鈕上添加點(diǎn)擊事件 ?-->
</tr>
<tr>
<td>xh002</td>
<td>劉小芳</td>
<td>
<a href="javascript:;" onclick="deleteChild(this);">刪除</a>
</td>
<!--在刪除按鈕上添加點(diǎn)擊事件 ?-->
</tr>
</table>
<input type="button" value="添加一行" onclick ?= "addLine()"/>
<!--在添加按鈕上添加點(diǎn)擊事件 ?-->
</body>
</html>
2018-08-14
2018-05-31