<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>请输入查询编号:<input type="text" id="put_info">
<input type="button" id="btnSubmit" value="查询">
<p id="content"></p>
</div>
<script>
document.getElementById("btnSubmit").onclick = function () {
search();
};
function search() {
var request = new XMLHttpRequest();
request.open('GET','raw_ajax_php.php?number=' + document.getElementById("put_info").value ,true);
request.send();
if (request.readyState === 4){
if (request.status === 200){
document.getElementById("content").innerHTML = request.responseText;
}else {
alert("请求发生错误!");
}
}
}
</script>
</body>
</html><?php
/**
* Created by PhpStorm.
* User: weiwei
* Date: 2017/3/30
* Time: 23:00
*/
header("content-type:text/html;charset=utf-8");
$numberinfo = array("jack","mary","oliao","griffin");
$number = $_GET["number"];
if (!isset($number) || empty($number)){
echo "输入有误！";
}
switch ($number){
case 1:
echo $numberinfo['0'];
break;
case 2:
echo $numberinfo[1];
break;
case 3:
echo $numberinfo[2];
break;
case 4:
echo $numberinfo[3];
break;
}为什么没有效果呢？错在哪了？
3 回答
千秋此意
TA贡献158条经验 获得超187个赞
function search() {
var request = new XMLHttpRequest();
request.open('GET', 'raw_ajax_php.php?number=' + document.getElementById("put_info").value, true);
request.send();
request.onreadystatechange = function() {
if (request.readyState === 4) {
if (request.status === 200) {
document.getElementById("content").innerHTML = request.responseText;
} else {
alert("请求发生错误!");
}
}
}
}这样写就行了（大佬你最近疯狂提问是在攒积分吗=、=）
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