js 实现智能输入数字

时间：2025-04-26 20:06:07
<!doctype html>

<html>

<head>

<meta charset="utf-8">

<meta name="author" content="智能社 - zhinengshe.com" />

<meta name="copyright" content="智能社 - zhinengshe.com" />

<title>智能社 - www.zhinengshe.com</title>

<style>

</style>

<script>

window.onload = function(){

    var oText = document.getElementsByTagName("input")[];

    oText.onkeydown = function(ev){

        var oEvent = ev || event;

        //0 48  9 57

        var keyCode = oEvent.keyCode;

        //alert(keyCode);esc没有

        if((keyCode <  || keyCode >) && keyCode !=

                && keyCode !=  && keyCode != ){

            return false;

        }

    };

};

</script>

</head>

<body>

<input type="text" value="" />

</body>

</html>

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