onkeyup="value=value.replace(/[^\d]/g,'')"?

ruanwxh 2009-10-30 10:13:10

<input type="text" name="text" value="0" onkeyup="value=value.replace(/[^\d]/g,'')"/>
怎样让他只能输入整数？例如：禁止输入0123456。

...全文

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friendly_ 2009-10-30

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按照楼主的原意
<input type="text" name="text" value="0" onkeyup="value=value.replace(/[^\d]/g,'').replace(/^0(\d+)$/,'$1')"/>

BeenZ 2009-10-30

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这样效果好



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >

<head>

    <title>Untitled Page</title>

</head>

<body>

<script>

    function regInput(obj, reg, inputStr) {

        var docSel = document.selection.createRange()

        if (docSel.parentElement().tagName != "INPUT") return false

        oSel = docSel.duplicate()

        oSel.text = ""

        var srcRange = obj.createTextRange()

        oSel.setEndPoint("StartToStart", srcRange)

        var str = oSel.text + inputStr + srcRange.text.substr(oSel.text.length);

        return reg.test(str)

    }

</script>

<input type="text" id="txt" onkeypress    = "return regInput(this,/^\d*$/,String.fromCharCode(event.keyCode))">







</body>

</html>

develop_design_level 2009-10-30

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=== 结贴，给分 ===

develop_design_level 2009-10-30

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

	<head>

		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

		<title>Untitled Document</title>

		<script type="text/javascript">

			/**

             * author: develop_design_level

             * date: 2009-10-30

             * @param {Object} id

             */

            function $(id){

                if (document.getElementById) {

                    return document.getElementById(id);

                }

                else {

                    return document.all.id;

                }

            }

			function checkInputText(){

				var regExp = /^\d+$/g;

				var text = this.value;

				if(!regExp.test(text)){

					this.value = '0';

				}

			}

			window.onload = function(){

				$('testId').onkeyup = checkInputText;

			};

		</script>

	</head>

	<body>

		<form>

			<input type="text" id="testId" value="0">

		</form>

	</body>

</html>