The regular expression itself is compiled into a Pattern object.
将正则表达式本身编译到Pattern对象中。
This pattern object represents the regular expression that is defined in text format.
该模式对象代表以文本格式定义的正则表达式。
A regular expression object contains the pattern of a regular expression.
核心对象一个正则表达式对象包含了匹配模式。
A regular expression object contains the pattern of a regular expression.
核心对象一个正则表达式对象包含了匹配模式。
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