Therefore the regular expression A*B will match the strings AB, AAB, AAAB, or any other string starting with an A and ending with a single B.

因此，正则表达式 A*B 将与字符串 AB 、 AAB 、 AAAB 或任何其它以 A 开头并以单个 B 为结尾的字符串相匹配。

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The books' publisher, Bungeisha, says the series - one each for types b, o, a, and AB - has combined sales of well over 5 million copies.

书籍出版商Bungeisha说，该四套书籍——其中每种都分别包括B型、O型、A型和AB型——已经创造了超过500万份的销售数量。

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For instance, the option string ab: indicates that the calling program knows two options: -a and -b, and that the next word after -b is a supplemental argument. Here's how the code looks.

例如，选项字符串ab：表示调用程序已知两个选项：- a和- b，- b后的下一个单词是补充参数。

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