In addition, asterisks can be used as wildcards to match multiple nodes, and bracketed expressions can be used to match attribute values and specify indices.
此外，星号可以用于作为通配符来匹配多个节点，括号内的表达式可以用于匹配属性值和规定索引。
A regular expression doesn't have to contain wildcards, but wildcards can make regular expressions useful for searching for patterns and manipulating files.
正则表达式不一定包含通配符，但通配符可以使正则表达式在搜索模式和处理文件时发挥更大的作用。
Regular expressions and wildcards are separate sections in Part VI.
正则表达式和通配符是第6部分中单独的两节内容。
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