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仅删除“/”的定期表述
原标题:Regular expressions that removes only first "/"

我对定期表达有新意,似乎无法发现我如何解决这个问题:

我需要一种定期表述,即“allows”仅限>、/。 我写道:

我认为,有可能将第1条<代码>/排除在外,但不知道如何。

∗∗∗∗∗

谁知道我如何能够取得这一结果?

感谢!

最佳回答

如果格局在扼杀中是相联的,你可以采用非全球对应办法:

var rx=/(([a-zA-Z0-9]+/*)+)/;

var s= #/register/step1 ;

var s1=(s.match(rx) || [])[0];


alert(s1)>>>  returned value: (String) "register/step1"
问题回答
"/register/step1".match(/[a-zA-Z0-9][a-zA-Z0-9/]*/); // ["register/step1"]

w is Equivalent to [^A-Za-z0-9_], so:

"/register/step1".match(/w[w/]*/); // ["register/step1"]

编辑:Don t知道,为什么我不建议这样做,但如果你只是执行模式,而不是取代,那么你就可以在检查模式之前用地、子(子)或类似的东西取代这种(如果存在的话)。 如果你已经使用了一个先决条件,那么你就应当研究有关职能说明的例子。





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