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JavaScript 编程

2015-08-12 22:13 681 查看

第五章文档对象模型DOM

面向对象：

1、

<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
</head>
<body>

</body>
<script type="text/javascript">
var arr = [
{name: "张三", age: 20},
{name: "李四", age: 21},
{name: "赵武", age: 22},
{name: "钱千", age: 23},
{name: "李颖", age: 24},
{name: "周瑶", age: 25},
{name: "吴赛", age: 26},
{name: "郑斌", age: 27},
{name: "王琦", age: 28},
{name: "冯峥", age: 29},
]
function Student(name, age, count) {
this.name = name;
this.age = age;
this.count = count;
}

var tableEle = document.createElement("table");
tableEle.setAttribute("border", "1");
var _1RowEle = tableEle.insertRow(0);
var _1Row1CellEle = _1RowEle.insertCell(0);
_1Row1CellEle.appendChild(document.createTextNode("序号"));
var _1Row2CellEle = _1RowEle.insertCell(1);
_1Row2CellEle.appendChild(document.createTextNode("姓名"));
var _1Row3CellEle = _1RowEle.insertCell(2);
_1Row3CellEle.appendChild(document.createTextNode("年龄"));
document.body.appendChild(tableEle);

Student.prototype.showInfo = function () {
var _2RowEle = tableEle.insertRow(this.count + 1);
var _2Row1CellEle = _2RowEle.insertCell(0);
_2Row1CellEle.appendChild(document.createTextNode(this.count + 1));
var _2Row2CellEle = _2RowEle.insertCell(1);
_2Row2CellEle.appendChild(document.createTextNode(this.name));
var _2Row3CellEle = _2RowEle.insertCell(2);
_2Row3CellEle.appendChild(document.createTextNode(this.age));

document.body.appendChild(tableEle);
}
for (var count = 0; count < 10; count++) {
var p = new Student(arr[count].name, arr[count].age, count);
p.showInfo();
}
</script>
</html>

结果显示：

2、操作文本：

<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div>
<p>haha</p>
<p>hehe</p>
</div>
</body>
<script type="text/javascript">
//选择元素
var pEle = document.getElementsByTagName("p")[0];
//改变文本
pEle.firstChild.nodeValue = "heihei";
pEle.firstChild.data = "xixi";
</script>
</html>

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JavaScript 编程

第五章 文档对象模型DOM

第五章文档对象模型DOM