yangsm的博客

$(function(){ $("button").click(function (ev1) { $.ajax({ type: "get", url: "ajax-jquery.php", data: { "userName": "123", "userPwd": "abc" }, timeout:3000, success: function (msg) { alert("Data Saved: " + msg); }, err

只能写在open()和send()之间 <script> window.onload = function(e){ var oBtn = document.querySelector("button"); oBtn.onclick = function(ev1){ // 1.创建一个异步对象 var xmlhttp; if(window.XMLHttpRequest){ xmlhttp = new XMLHttpRequest(); }else{ ..

1.创建一个异步对象 2.设置请求方式和请求地址 3.发送请求 4.监听状态的变化 5.处理返回的结果 <script> window.onload = function(e){ var oBtn = document.querySelector("button"); oBtn.onclick = function(ev1){ // 1.创建一个异步对象 var xmlhttp; if(window.XMLHttpRequest){ xmlhttp = n.

文件上传 <form action="postFile.php" method="post" enctype="multipart/form-data"> <input type="file" name="upFile" value=""><br> <input type="submit" name="" value="上传"> </form> <?php // print_r($_FILES); // echo "<br&

get <form action="get.php" method="get"> <input type="text" name="userName" value=""><br> <input type="password" name="userPwd" value=""><br> <input type="submit" name="" value="提交"> </form> <?php //print_r