如何使用以下规则在HTML5中编写验证?
示例:
ab12345 , xy56879 , pm30075
HTML
<form action="" method="post">
<div>
<label for="userid">User ID:</label>
<input type="text" name="userid" class="form-control" value="" required pattern="[A-Za-z]{2}+[0-9]{5}" title="User ID" aria-required="true" placeholder="Eg: ab12345">
</div>
<br>
<div>
<label for="email">Email Address:</label>
<input type="text" name="email" value="" required title="Email" aria-required="true" placeholder="hello.world@happyworld.com">
</div>
<button type="submit">Submit</button>
</form>
答案 0 :(得分:1)
答案 1 :(得分:1)
只需从您的模式中移除+
:
input:invalid { outline: 1px solid red }
&#13;
<input type="text" pattern="[A-Za-z]{2}[0-9]{5}" required="true" placeholder="Eg: ab12345">
&#13;