wildcard character 通配符－你知道吗？在DOS时代通配符是搜索的必备参数，到遥还是在很多场合遥。


当我们看到wildcard这个单词时，可能会感到费解，从字面上看是“野的”、“卡片”，怎么会跟计算机有什么关系，莫名其妙。


下面就介绍一下这个家伙：

通配符
wildcard character

定义：

A special symbol that stands for one or more characters.
Many operating systems and applications support wildcards for identifying files and directories.
This enables you to select multiple files with a single specification.
For example, in DOS and Windows, the asterisk () is a wild card that stands for any combination of letters.
The file specification
m (来源：英语学习门户网站2hzz.
com) therefore, refers to all files that begin with m.
Similarly, the specification m.
doc refers to all files that start with m and end with.
doc.
Many word processors also support wild cards for performing text searches.

例子：
(wildcard characters and ?
allowed, see examples)
细分：
asterisk wildcard 星号通配符 question mark wildcard 问号通配符


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