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  • JS表单验证

      1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      2 <html xmlns="http://www.w3.org/1999/xhtml">
      3 <head>
      4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
      5 <title>无标题文档</title>
      6     <style>
      7         .success
      8         {
      9             color:green;
     10         }
     11         .fail
     12         {
     13             color:red;
     14         }
     15     </style>
     16     <script>
     17         function checkField(reg,objId)
     18         {
     19             var obj = document.getElementById(objId);
     20             var objSpan = document.getElementById(objId+"Span");
     21             if(reg.test(obj.value))
     22             {
     23                 objSpan.innerHTML=obj.getAttribute("alt")+"OK";    
     24                 objSpan.className="success";
     25                 return true;
     26             }
     27             else
     28             {
     29                 objSpan.innerHTML=obj.getAttribute("alt")+"不符合规则";    
     30                 objSpan.className="fail";
     31                 return false;
     32             }
     33         }
     34         function checkUname()
     35         {        
     36             var reg = new RegExp("^[a-zA-Z0-9][a-zA-Z0-9_]{2,7}$");
     37             return checkField(reg,"uname");
     38         }
     39         function checkRealName()
     40         {
     41             var reg = /^[u4E00-u9FA5]{2,8}$/ig;
     42             return checkField(reg,"realName");
     43         }
     44         function checkEmail()
     45         {
     46             var reg = /^([a-zA-Z0-9]+[_|\_|.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|.]?)*[a-zA-Z0-9]+.[a-zA-Z]{2,3}$/;
     47             return checkField(reg,"email");
     48         }
     49         function checkPhone()
     50         {
     51             var reg = /^1[3|4|5|8][0-9]d{4,8}$/;
     52             return checkField(reg,"phone");
     53         }
     54         function checkAge()
     55         {
     56             var reg = /^([0-9]|[0-9]{2}|100)$/;
     57             return checkField(reg,"age");
     58         }
     59         function checkPwd()
     60         {
     61             pwd1 = document.getElementById("pwd1");
     62             pwd2 = document.getElementById("pwd2");
     63             var objSpan = document.getElementById("pwdSpan");
     64             if(pwd1.value == pwd1.value && pwd1.value != "" && pwd2.value != "")
     65             {
     66                 objSpan.innerHTML=pwd2.alt+"OK";    
     67                 objSpan.className="success";
     68                 return true;
     69             }
     70             else
     71             {
     72                 objSpan.innerHTML=pwd2.alt+"不符合规则";    
     73                 objSpan.className="fail";
     74                 return false;
     75             }
     76         }
     77         var code;
     78         function createRandom()
     79         {
     80             var yzmSpan = document.getElementById("yzmSpan");
     81             yzmSpan.innerHTML = code = parseInt(Math.random()*9000+1000);
     82         }
     83         function checkFav()
     84         {
     85             var favs = document.getElementsByName("hobby");
     86             var favSpan = document.getElementById("favSpan");
     87             var count = 0;
     88             for(var i = 0; i < favs.length; i++)
     89             {
     90                 if(favs[i].checked)
     91                 {
     92                     count++;
     93                 }
     94             }
     95             if(count > 1)
     96             {
     97                 favSpan.innerHTML = "爱好OK";
     98                 favSpan.className = "success";
     99                 return true;
    100             }
    101             else
    102             {
    103                 favSpan.innerHTML = "至少选择两项";
    104                 favSpan.className = "fail";
    105                 return false;
    106             }
    107         }
    108         function checkIntroduce()
    109         {
    110             var reg = /^w{20,140}$/ig;
    111             return checkField(reg,"introduce");
    112         }
    113         function checkCode()
    114         {
    115             var yzm = document.getElementById("yzm").value;
    116             var yzmSpan2 = document.getElementById("yzmSpan2");
    117             if(code == yzm)
    118             {
    119                 yzmSpan2.innerHTML = "验证码OK";
    120                 yzmSpan2.className = "success";
    121                 return true;
    122             }
    123             else
    124             {
    125                 yzmSpan2.innerHTML = "验证码不正确";
    126                 yzmSpan2.className = "fail";
    127                 return false;
    128             }
    129         }
    130         function checkAddress()
    131         {
    132             var addr = document.getElementById("class");
    133             var addrSpan = document.getElementById("classSpan");
    134             if(!(addr.value == "--请选择--"))
    135             {
    136                 addrSpan.innerHTML = "籍贯OK";
    137                 addrSpan.className = "success";
    138                 return true;
    139             }
    140             else
    141             {
    142                 addrSpan.innerHTML = "籍贯不正确";
    143                 addrSpan.className = "fail";
    144                 return false;
    145             }
    146         }
    147         function checkAgree()
    148         {
    149             var agree = document.getElementById("agree");
    150             var sub = document.getElementById("sub");
    151             if(!agree.checked)
    152             {
    153                 sub.disabled = true;
    154             }
    155             else
    156             {
    157                 sub.disabled = false;
    158             }
    159             
    160         }
    161         function checkAll()
    162         {
    163             var a = checkUname();
    164             var b = checkRealName();
    165             var c = checkEmail();
    166             var d = checkPhone();
    167             var e = checkAge();
    168             var f = checkPwd();
    169             var g = checkFav();
    170             var h = checkIntroduce();
    171             var i = checkCode();
    172             var j = checkAddress();
    173             var k = checkAgree();
    174             return(a&&b&&c&&d&&e&&f&&g&&h&&i&&j&&k);
    175         }
    176     </script>
    177 </head>
    178 
    179 <body onload = "createRandom();">
    180     <form action="#" method="get" onsubmit="return checkAll();">
    181     <table border="1" bordercolor="blue"    cellspacing="0">
    182         <tr>
    183             <td width="100px" >用户名</td>
    184             <td width="400px">
    185             <input name="name" type="text" size="20" id="uname" alt="用户名" onblur="checkUname();"/>
    186             <span id="unameSpan"></span>
    187             </td>
    188         </tr>
    189         <tr>
    190             <td width="100px" >真实名</td>
    191             <td width="400px"><input name="name" type="text" id="realName" alt="真实名"   size="20" onblur="checkRealName();"/>
    192             <span id="realNameSpan"></span>
    193             </td>
    194         </tr>
    195         <tr>
    196             <td>密码</td>
    197             <td><input id="pwd1" name="password" type="password" size="20" /></td>
    198             
    199         </tr>
    200         <tr>
    201             <td>重复密码</td>
    202             <td><input id="pwd2" name="rpassword" type="password" onblur="checkPwd();" alt="密码" size="20" />
    203             <span id="pwdSpan"></span>
    204             </td>
    205         </tr>
    206         <tr>
    207             <td>验证码</td>
    208             <td><input id="yzm" alt="验证码" name="yzm" type="text" size="20" onblur="checkCode();"/>
    209             <span id="yzmSpan"></span>
    210             <span id="yzmSpan2"></span>
    211             </td> 
    212         </tr>
    213         <tr>
    214             <td>年龄</td>
    215             <td><input id="age" onblur="checkAge();" alt="年龄" name="age" type="text" size="20" />
    216             <span id="ageSpan"></span>
    217             </td> 
    218         </tr>
    219         <tr>
    220             <td>手机号</td>
    221             <td>
    222             <input type="text" name="phone" size="20" onblur="checkPhone();" alt="手机号" id="phone">
    223             <span id="phoneSpan"></span>
    224             </td>
    225         </tr>
    226         <tr>
    227             <td>邮箱</td>
    228             <td>
    229             <input type="text" name="email" size="20" onblur="checkEmail();" alt="邮箱" id="email">
    230             <span id="emailSpan"></span>
    231             </td>
    232         </tr>
    233         <tr>
    234             <td width="100px">性别</td>
    235             <td width="400px">
    236             <input name="sex" type="radio" value="0" checked="true"/>237             <input name="sex" type="radio" value="1" />238             </td>
    239             
    240         <tr>
    241             <td>爱好</td>
    242             <td>
    243                 <input name="hobby" type="checkbox" value="1" onclick="checkFav();"/>足球
    244                 <input name="hobby" type="checkbox" value="2" onclick="checkFav();"/>篮球
    245                 <input name="hobby" type="checkbox" value="3" onclick="checkFav();"/>羽毛球
    246                 <input name="hobby" type="checkbox" value="4" onclick="checkFav();"/>乒乓球
    247             <span id="favSpan"></span>
    248             </td>
    249         </tr><tr>
    250             <td>班级</td>
    251             <td>
    252                 <select name="class" id = "class" onblur="checkAddress();">
    253                 <option>--请选择--</option>
    254                 <option>一年级一班</option>
    255                 <option>一年级二班</option>
    256                 </select>
    257                 <span id="classSpan"></span>
    258             </td>
    259         </tr>
    260         <tr>
    261             <td>说明</td>
    262             <td>
    263                 <textarea name="introduce" cols="40" rows="6" id="introduce" onblur="checkIntroduce();" alt="介绍"></textarea>
    264             <span id="introduceSpan"></span>
    265             </td>
    266         </tr>
    267         <tr>
    268             <td colspan="2" align="right">
    269                 <input type="checkBox" id="agree" onchange="checkAgree();">是否同意光软集团注册协议
    270             </td>
    271         </tr>
    272         <tr>
    273             <td>
    274                 <input type="reset" name="reset" value="重置" />
    275             </td>
    276             <td>
    277                 <input type="submit" name="sub" value="提交" id="sub" disabled="true" />
    278             </td>
    279         </tr>
    280     </table>
    281 </body>
    282 </html>

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  • 原文地址:https://www.cnblogs.com/guanghe/p/5959709.html
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