冰天雪地裸求 我的javascript不运行怎末办? 1.在js里面判断语句要使用 "=="2.在js里面逻辑与&& 逻辑或 || .3.var info2=document.information.teachers.value;这句好象有点问题。单词吧。恩。检查过。就这么多原因! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 if(info=="" || info1=="")(info2=="" || info3=="") 还有检查不通过时要加上一句return false; 还有你的一个分号打的不对。下面是经过测试后的代码:<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>标准化考试系统——登陆界面</title><style type="text/css"><!--body { background-color: #0000CC;}.style1 { color: #FF0000; font-size: 16px; font-weight: bold;}.style2 { color: #FF0B0B; font-size: 16px; font-weight: bold;}.style3 { color: #FE0000; font-size: 14px;}.style4 { color: #F90004; font-size: 14px;}--></style><script language="javascript"> function view() { var info=document.information.passwords.value; var info1=document.information.personame.value; var info2=document.information.shenfen.value; if(info2=="") { alert("对不起,请你选择身份!"); return false; } else if(info==""||info1=="") { alert("对不起,准考证号或考生姓名不能为空!"); return false; } return true; } </script></head><body><table width="778" border="0" align="center" cellpadding="0" cellspacing="1"> <tr> <td height="88"> </td> <td> </td> <td> </td> </tr> <tr> <td width="89" height="450"> </td> <td width="600" align="center" valign="top" background="image/second.jpg"> <form name="information" method="post" onSubmit="return view()" action="login.html"> <table width="593" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="292" height="250"> </td> <td width="194"> </td> <td width="99"> </td> </tr> <tr> <td height="30" align="right"><span class="style1">准考证号</span></td> <td><div align="center"> <input type="text" name="passwords"> </div></td> <td> </td> </tr> <tr> <td height="30" align="right"><span class="style2">考生姓名</span></td> <td><div align="center"> <input type="text" name="personame"> </div></td> <td> </td> </tr> <tr> <td height="30" align="right"> </td> <td><div align="center"><span class="style3">教师</span> <input type="radio" name="shenfen" value="teachers"> <span class="style4">学生</span> <input type="radio" name="shenfen" value="students"> </div></td> <td> </td> </tr> <tr> <td height="30"> </td> <td><div align="center"> <input type="Submit" name="Submit" value=" 登 陆 "> </div></td> <td> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> </tr> </table> </form> </td> <td width="89"> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> </tr></table></body></html> 怎样用JS动态改变frame框架里一个子frame的src 急!! 用过jqGrid这个插件的前辈们进 请问页面里的js代码放在哪个目录下? 一个很奇怪的JS问题(有关if else) 背景图片上定位光标位置并保存? 怎样一行一行的读 用JAVASCRIPT 这么简单的脚本怎么就不行? WScript.Run不能运行 怎么远程调试微信app npm安装淘宝镜像出错,网上搜索了一下找不到类似问题的解决办法,求大神帮助 如何用一个CheckBox控制另外一个CheckBox的灰暗? 如何用js接收变量值
(info2=="" || info3=="")
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>标准化考试系统——登陆界面</title>
<style type="text/css">
<!--
body {
background-color: #0000CC;
}
.style1 {
color: #FF0000;
font-size: 16px;
font-weight: bold;
}
.style2 {
color: #FF0B0B;
font-size: 16px;
font-weight: bold;
}
.style3 {
color: #FE0000;
font-size: 14px;
}
.style4 {
color: #F90004;
font-size: 14px;
}
-->
</style>
<script language="javascript">
function view()
{
var info=document.information.passwords.value;
var info1=document.information.personame.value;
var info2=document.information.shenfen.value;
if(info2=="")
{
alert("对不起,请你选择身份!");
return false;
}
else if(info==""||info1=="")
{
alert("对不起,准考证号或考生姓名不能为空!");
return false;
}
return true;
}
</script>
</head><body>
<table width="778" border="0" align="center" cellpadding="0" cellspacing="1">
<tr>
<td height="88"> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td width="89" height="450"> </td>
<td width="600" align="center" valign="top" background="image/second.jpg">
<form name="information" method="post" onSubmit="return view()" action="login.html">
<table width="593" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="292" height="250"> </td>
<td width="194"> </td>
<td width="99"> </td>
</tr>
<tr>
<td height="30" align="right"><span class="style1">准考证号</span></td>
<td><div align="center">
<input type="text" name="passwords">
</div></td>
<td> </td>
</tr>
<tr>
<td height="30" align="right"><span class="style2">考生姓名</span></td>
<td><div align="center">
<input type="text" name="personame">
</div></td>
<td> </td>
</tr>
<tr>
<td height="30" align="right"> </td>
<td><div align="center"><span class="style3">教师</span>
<input type="radio" name="shenfen" value="teachers">
<span class="style4">学生</span>
<input type="radio" name="shenfen" value="students">
</div></td>
<td> </td>
</tr>
<tr>
<td height="30"> </td>
<td><div align="center">
<input type="Submit" name="Submit" value=" 登 陆 ">
</div></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
</form>
</td>
<td width="89"> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
</body>
</html>