javascript 全角轉換實現(xiàn)代碼

更新時間：2009年07月17日 00:58:24 作者：

當客戶端用戶切換輸入法至全角時可能您的表單提交會有漏洞哦！不過事實上js有這功能可以將其轉換為非全角字符！

下面我們來看下這個例子吧！

<html> 
    <head> 
        <title>jqueryDemo:quanjiaoNum</title> 
        <script src="jquery.js" src="jquery.js" type="text/javascript"></script> 
        <script type="text/javascript"><!-- 
            function changeNum(){ 
                var qjNum=$("input[@name=qjNum]").val(); 
                var toAscii=qjNum.charCodeAt(); 
                if(toAscii > 65295 && toAscii < 65306 && qjNum.length == 11) 
                { 
                    var toBack = 0; 
                    var temp = 0; 
                    var unite = ""; 
                    for(var i=0;i < qjNum.length;i++) 
                    { 
                        toAscii=qjNum.charCodeAt(i); 
                        toBack =toAscii-65248; 
                        temp = String.fromCharCode(toBack); 
                        unite = unite + temp ; 
                    } 
                    alert(unite); 
                    return true; 
                } 
                if(toAscii > 47 && toAscii < 58 && qjNum.length == 11) 
                { 
                    alert(qjNum); 
                    return true; 
                } 
                else{ 
                    alert("請輸入正確的手機號碼"); 
                    document.myform.qjNum.value=""; 
                    return false; 
                } 
            } 

// --></script> 
    </head> 
    <form name="myform" action=""> 
        中文數(shù)字轉換成阿拉伯數(shù)字：<input type="text" id="qjNum" name="qjNum"/><input type="button" value="提 交" onclick="changeNum()"/> 
    </form> 
</html>