jquery ajax
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script src="js/jquery-1-7-2.js" type="text/javascript"></script>
<script type="text/javascript">
window.onload = function() {
document.getElementById("txtNum").focus();
}
function GetFocus() {
if (event.keyCode == 13) {
document.getElementById("Button1").click();
return false;
}
}
</script>
<script type="text/javascript">
$(document).ready(function() {
document.getElementById("txtNum").focus();
$("#divBtn").click(function() {
var info = document.getElementById("txtNum").value;
var info2 = document.getElementById("txtNum2").value;
$.ajax({
type: 'get',
url: 'b.aspx?num1=' + info,
data: { "num2": info2 },
cache: false,
dataType: 'html',
success: function(data) {
var dd = data.substring(data.indexOf("lblRes") + 8, data.indexOf("</span>"));
$('#lblNum').val(dd);
}
});
});
});
</script>
</head>
<body>
条形码1:<input id="txtNum" type="text" onkeypress="GetFocus()" /><br />
条形码2:<input id="txtNum2" type="text" onkeypress="GetFocus()" /><br />
<div id="divBtn" style="display: none;">
<input id="Button1" type="button" value="button" />
</div>
库存:<input id="lblNum" type="text" />
</body>