HTML Pattern Input to Allow Only Specific Numbers
Question
我想要表单的邮政编码部分，所以只允许 5 个数字，使用 html 模式拒绝任何不以 46,52,53,54,60,61,62 开头的内容
1 answers
solution1
0 ACCPTED 2019-08-08 16:21:36
Try the below pattern (starts with one of the specified numbers and then allow 3 digits):
^(46|52|53|54|60|61|62)([0-9]{3})$
Here is the running HTML sample. You may use this pattern in Javascript as well if you want to perform the validation yourself:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Prescriptions</title> </head> <body> <form action="#"> Country code: <input type="text" name="country_code" pattern="^(46|52|53|54|60|61|62)([0-9]{3})$" title="Enter five digit number starting with specific numbers"> <input type="submit"> </form> </body>
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