Wild cards are typically a question mark (?), pound sign (#), or asterisk (*) used as placeholder symbols to stand in for letters.

典型的通配符是，问号（？） ，井号（#），或者星号（*），用来作为替代字母的占位符。

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The plus sign at the end means "match one or more of the last thing" (the asterisk is for "zero or more", and the question-mark is for "zero or one").

结尾处的加号表示“查找最后字符串的一个或多个匹配”(星号表示“零个或多个”，问号表示“零个或一个”)。

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