JavaScript里面常用到的验证

1、 验证输入只能输入数字：

<mce:script type="text/JavaScript"><!-- function isNumberInput(event) //数据类型检测 { var key, keyChar; if (window.event) key = window.event.keyCode; //接收键盘输入 else if (event) key = event.which; else return true; // 检测空格等特殊字符 if (key == null || key == 0 || key == 8 || key == 13 || key == 27) return true; keyChar = String.fromCharCode(key); if (//d/.test(keyChar)) { // 检测输入是否数字，若是，则显示 window.status = ""; return true; } else { window.status = "本区域只接受数字输入"; //如果输入不是数字，给出提示 return false; } } // --></mce:script>

 

 

2、验证文本框只能为汉字

 //方法一

    <script type="text/javascript">
        function OnlyCanChina()
        {
           var re =   /[^/u3447-/uFA29]/;
           var value = document.getElementById("chinesetext").value;
           if(value=="")return;
           if(myre.test(value))
           {
                  document.getElementById("chinesetext").value = "";
                  alert("只能为中文哦！");
           }
        }
    </script>

//方法二
    <script type="text/javascript">
        function onlychinese() {
            if ((window.event.keyCode >= 32) && (window.event.keyCode <= 126)) {
                window.event.keyCode = 0;
            }
        }
    </script>

 

 

3、明天再加