HTML5 使用正则表达式
- 作者: 乱气质
- 来源: 51数据库
- 2022-09-21
<form action="" method="post">
<label for="username">Create a Username: </label>
<input type="text"
name="username"
id="username"
placeholder="4 <> 10"
pattern="[A-Za-z]{4,10}"
autofocus
required>
<button type="submit">Go </button>
</form>
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