Pattern not matched 图形不配
What if you want to include the literal matched pattern in the replacement text?
如果您希望在替换文本中包括字面匹配的模式，该怎么办呢？
Upper_case takes in an array of matches and returns the whole matched pattern in uppercase.
函数upper_case接收匹配结果数组，并将整个匹配结果转化成大写。
The exclamation mark is used to separate sections of matched pattern. See "Pattern Match Results" below.
感叹号被用来分隔被匹配的部分。请见下述的”模式匹配结果”一节。
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