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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript">
function ajax(url,funsucc){
var oAjax=new XMLHttpRequest();
oAjax.open('GET',url,true);
oAjax.send();
oAjax.onreadystatechange=function(){
if(oAjax.readyState==4){
if(oAjax.status==200){
funsucc(oAjax.responseText);
}
}
}
}
</script>
<script type="text/javascript">
window.onload=function(){
var oTxt=document.getElementById('txt1');
var oBtn=document.getElementById('btn1');
oBtn.onclick=function(){
ajax("ajaxinsert.php?id="+oTxt.value); //不知道这里怎么写 只写了一个url
}
}
</script>
</head>
<body>
<form>
<input type="text" id="txt1">
<button type="submit" id="btn1">提交</button>
</form>
</body>
</html>
<?php
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");
$id=$_GET["id"];
$stmt=$pdo->prepare("insert into ajax(txt) values(?)");
$stmt->execute(array($id));
?>