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。
2
The expression on our face, the gestures we make, and even proximity or the way we sit are some of the ways we send powerful messages about how we feel or what we mean.