目前,我定期发表这一声明,以确认信件、仪表和空间。
/^[a-zA-Z-s]*$/
现在,我感到非常困惑的是,如何改写这一规则,即除数字外,它将接受所有东西?
目前,我定期发表这一声明,以确认信件、仪表和空间。
/^[a-zA-Z-s]*$/
现在,我感到非常困惑的是,如何改写这一规则,即除数字外,它将接受所有东西?
To have anything except something, you need a negated character class
[^d]
A character class that starts with ^
is a negated class, d
is a predefined class that contains digits.
如果你真的只有数位数,你可以进一步缩短,那么<代码>d也有一个预先定义的否定。 页: 1 D
http://code>D。
/^D*$/
<代码>D与非数字性质相符。 上述表述与完全由非数字构成的任何扼杀一致。
(这种模式与“abc”相匹配,与“123”或“ab2c”相匹配。)
仅限使用<条码>。 <代码>[^d]>
/D/
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