등록 페이지 양식 확인의 JavaScript 구현 공유 예
- 黄舟원래의
- 2017-08-20 10:03:192515검색
아래 편집기는 등록 페이지에서 양식 확인을 완료하기 위해 JavaScript를 사용하는 예를 제공합니다. 편집자님이 꽤 좋다고 생각하셔서 지금 공유하고 모두에게 참고용으로 드리도록 하겠습니다. 에디터를 따라가며 함께 살펴볼까요
1. 단계 분석
첫 번째 단계: 이벤트를 결정하고(onsubmit) 함수를 바인딩합니다
두 번째 단계: 이 함수를 작성합니다(get user 데이터 입력37b8c252bbb904c5a2e0552ed3711d8a)
3단계: 사용자가 입력한 데이터를 판단합니다
4단계: 데이터가 합법적입니다(양식 제출)
5단계 : 데이터가 불법입니다(오류 메시지가 표시되고 양식 제출이 허용되지 않음)
질문: 양식 제출을 어떻게 제어하나요?
onsubmit 이벤트 정보: 일반적으로 양식 제출에 사용되므로 함수 정의 시 반환 값을 제공해야 합니다.
onsubmit = return checkForm()
2. 등록 페이지 양식 확인을 완료하세요
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>注册页面</title>
<script>
function checkForm(){
//alert("aa");
/**校验用户名*/
//1.获取用户输入的数据
var uValue=document.getElementById("user").value;
//alert(uValue);
if(uValue==""){
//2.给出错误提示信息
alert("用户名不能为空");
return false;
}
/**校验密码*/
var pValue=document.getElementById("password").value;
if(pValue==""){ //注意空的表示方法
alert("密码不能为空");
return false;
}
/** 校验确认密码*/
var rpValue=document.getElementById("repassword").value;
if(rpValue!=pValue){
alert("两次密码输入不一致！");
return false;
}
/**校验邮箱*/
var eValue=document.getElementById("email").value;
if(！/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/.test(eValue)){
alert("邮箱格式不正确！");
}
}
</script>
</head>
<body>
<table border="1px" align="center" width="1300px" cellpadding="0px" cellspacing="0px">
<!--1.logo部分-->
<tr>
<td>
<!--嵌套一个一行三列的表格-->
<table border="1px" width="100%">
<tr height="50px">
<td width="33.3%">
<img src="../img/logo2.png" height="47px" />
</td>
<td width="33.3%">
<img src="../img/header.png" height="47px"/>
</td>
<td width="33.3%">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >登录</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >注册</a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >购物车</a>
</td>
</tr>
</table>
</td>
</tr>
<!--2.导航栏部分-->
<tr height="50px" >
<td bgcolor="black">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font size="3" color="white">首页</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font color="white">手机数码</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font color="white">电脑办公</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font color="white">鞋靴箱包</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font color="white">家用电器</font></a>
</td>
</tr>
<!--3.注册表单-->
<tr>
<td height="600px" background="../img/regist_bg.jpg">
<!--嵌套一个十行二列的表格-->
<form action="#" method="get" name="regForm" onsubmit="return checkForm()">
<table border="1px" width="750px" height="400px" align="center" cellpadding="0px" cellspacing="0px" bgcolor="white">
<tr height="40px">
<td colspan="2">
<font size="4">会员注册</font> USER REGISTER
</td>
</tr>
<tr>
<td>用户名</td>
<td>
<input type="text" name="user" size="35px" id="user"/>
</td>
</tr>
<tr>
<td>密码</td>
<td>
<input type="password" name="password" size="35px" id="password"/>
</td>
</tr>
<tr>
<td>确认密码</td>
<td>
<input type="password" name="repassword" size="35px" id="repassword"/>
</td>
</tr>
<tr>
<td>E-mail</td>
<td>
<input type="text" name="e-mail" size="35px" id="email"/>
</td>
</tr>
<tr>
<td>姓名</td>
<td>
<input type="text" name="username" size="35px"/>
</td>
</tr>
<tr>
<td>性别</td>
<td>
<input type="radio" name="sex" value="男"/>男
<input type="radio" name="sex" value="女"/>女
</td>
</tr>
<tr>
<td>出生日期</td>
<td>
<input type="text" name="birthday" size="35px"/>
</td>
</tr>
<tr>
<td>验证码</td>
<td>
<input type="text" name="yzm" />
<img src="../img/yanzhengma.png" />
</td>
</tr>
<tr align="center">
<td colspan="2">
<input type="submit" value="注册" />
</td>
</tr>
</table>
</form>
</td>
</tr>
<!--4.广告图片-->
<tr>
<td>
<img src="../img/footer.jpg" width="100%"/>
</td>
</tr>
<!--5.友情链接和版权信息-->
<tr>
<td align="center">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>关于我们</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>联系我们</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>招贤纳士</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>法律声明</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>友情链接</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>支付方式</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>配送方式</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>服务声明</font></a>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><font>广告声明</font></a>
<p>
Copyright © 2005-2016 hh商城 版权所有
</p>
</td>
</tr>
</table>
</body>
</html>확인 및 비밀번호 확인 부분에 정규식을 사용하세요. (기억할 필요가 없으며 필요할 때 문서를 찾아보세요.) )
정규식.test(체크객체)는 조건을 만족하면 true, false이면 만족하지 않습니다.
위 내용은 등록 페이지 양식 확인의 JavaScript 구현 공유 예의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!
성명：
본 글의 내용은 네티즌들의 자발적인 기여로 작성되었으며, 저작권은 원저작자에게 있습니다. 본 사이트는 이에 상응하는 법적 책임을 지지 않습니다. 표절이나 침해가 의심되는 콘텐츠를 발견한 경우 admin@php.cn으로 문의하세요.