<html>
<head>
<script type="text/javascript">
function showHint(str){
var xmlhttp;
if (str.length==0){
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}else{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200){
var h=xmlhttp.responseText
var obj = eval('(' + h + ')'); //转换成json格式
//document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
if(str=='c'){
document.getElementById("txtHint").innerHTML=obj.a;
}else if(str=='b'){
document.getElementById("txtHint").innerHTML=obj.b;
}
}
}
xmlhttp.open("GET",'c.txt',true);
xmlhttp.send();
/*c.txt文件内容
{
a:'active',
b:'box',
}*/
}
</script>
</head>
<body>
<h3>请在下面的输入框中键入字母（A - Z）：</h3>
<form action="">
姓氏：<input type="text" id="txt1" onkeyup="showHint(this.value)" />
</form>
<p>建议：<span id="txtHint"></span></p>
</body>
</html>
<head>
<script type="text/javascript">
function showHint(str){
var xmlhttp;
if (str.length==0){
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}else{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200){
var h=xmlhttp.responseText
var obj = eval('(' + h + ')'); //转换成json格式
//document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
if(str=='c'){
document.getElementById("txtHint").innerHTML=obj.a;
}else if(str=='b'){
document.getElementById("txtHint").innerHTML=obj.b;
}
}
}
xmlhttp.open("GET",'c.txt',true);
xmlhttp.send();
/*c.txt文件内容
{
a:'active',
b:'box',
}*/
}
</script>
</head>
<body>
<h3>请在下面的输入框中键入字母（A - Z）：</h3>
<form action="">
姓氏：<input type="text" id="txt1" onkeyup="showHint(this.value)" />
</form>
<p>建议：<span id="txtHint"></span></p>
</body>
</html>