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Grammars - RegEx
原标题:Grammars - RegEx
  • 时间:2011-10-02 03:20:09
  •  标签:
  • regex

我试图经常表明,无论如何分配,一分之总数都不为三。 aabaabbaba。 这是:

b*ab*ab*

现在有人告诉我,我可以这样做。

(b*ab*ab*)*

为什么需要附上它,为什么需要外部的 star子挨饿?

是否在母体内分配外壳的ene和 b? 如果这种情况发生,那么双重ene子的含义是什么?

最佳回答

如果要看三人,你需要三人。 因此正确的表述是:

www.un.org/Depts/DGACM/index_spanish.htm

这种表述是三倍,有可能是中间的。 最后一点是,必须重复(整个母体表示)。

问题回答

外部<代码>*重复entire series0 or more倍。

换言之,与<条码>b*ab*a*相匹配的“0”或更多次数。





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