ajax 简单实例

2023-09-11 阅读 19 评论 0

摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script> function loadXMLDoc(){ var xmlhttp;if (window.XMLHttpRequest){// IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码 xmlhttp=new XMLHttpReques

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script>
function loadXMLDoc(){
var xmlhttp;if (window.XMLHttpRequest){// IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码
     xmlhttp=new XMLHttpRequest();}else{// IE6, IE5 浏览器执行代码
     xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");}xmlhttp.onreadystatechange=function(){if (xmlhttp.readyState==4 && xmlhttp.status==200){document.getElementById("myDiv").innerHTML=xmlhttp.responseText;}}xmlhttp.open("GET","ajax.txt",true);  //这里填写请求路径
     xmlhttp.send();
}
</script>
</head>
<body><div id="myDiv"><h2></h2></div><button type="button" onclick="loadXMLDoc()">显示内容</button>
</body>
</html>