<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
div {
width: 500px;
height: 20px;
border: 2px solid red;
}
</style>
</head>
<body>
<input type="button" value="按钮" id="bt"/>
<div id="dv">哇,好棒</div>
<script src="common.js"></script>
<script>
//设置任意的标签中间的文本内容
function setInnerText(element, text) {
//判断浏览器是否支持该属性
if (typeof element.textContent == "undefined") {
element.innerText = text;
} else {
element.textContent = text;
}
}
//获取任意标签中间的文本内容
function getInnerText(element) {
if (typeof element.textContent == "undefined") {
return element.innerText;
} else {
return element.textContent;
}
}
//测试
// my$("bt").onclick = function () {
// alert(getInnerText(my$("dv")));
// };
my$("bt").onclick = function () {
setInnerText(my$("dv"), "真的很棒");
};
</script>
</body>
</html>
