Html HTML5 表单模式/验证
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HTML5 Form Pattern / Validation
提问by Robert
I am trying to come up with a valid pattern for an HTML5 form. I would like to allow all upper & lower case letters, spaces, numbers, and the symbols / \ @ # $ % & .
我正在尝试为 HTML5 表单提出有效的模式。我想允许所有大写和小写字母、空格、数字和符号 / \ @ # $ % & 。
I've tried a couple different formats but I haven't had any luck.
我尝试了几种不同的格式，但我没有任何运气。
So far I have:
到目前为止，我有：
Address: <input type="text" name="Address" size="25" pattern="[a-zA-Z0-9 ]{2,35}]" title="Title" required/>
回答by Alexander Jardim
This is an example I built with w3schools test page:
这是我使用 w3schools 测试页构建的示例：
<!DOCTYPE html>
<html>
<body>
<form onsubmit="getElementById('s').innerHTML=getElementById('i').value;return false;">
Country code: <input id="i" type="text" name="country_code" pattern="([a-zA-Z0-9]| |/|\|@|#|$|%|&)+" title="Three letter country code">
<input type="submit">
</form>
<p>Submitted value: <span id="s">Note: The pattern attribute of the input tag is not supported in Internet Explorer 9 and earlier versions, or in Safari.
注意：Internet Explorer 9 及更早版本或 Safari 不支持 input 标签的模式属性。
You can use it to make your own tests at http://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_input_pattern
您可以使用它在http://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_input_pattern上进行自己的测试
