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标题: wildcard character 通配符-你知道吗? [打印本页]

作者: 幽幽草    时间: 2007-1-31 17:04     标题: wildcard character 通配符-你知道吗?

在DOS时代通配符是搜索的必备参数,到现在还是在很多场合使用。

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*

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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