39 lines
		
	
	
		
			411 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			411 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 5e7b9f0b0b6c005b0e76f070
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| title: '正则表达式: 实用应用'
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| challengeType: 11
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| videoId: xCjFU9G6x48
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| bilibiliIds:
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|   aid: 546924659
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|   bvid: BV1mq4y1H7rZ
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|   cid: 376386493
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| dashedName: regular-expressions-practical-applications
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| ---
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| 
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| # --question--
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| 
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| ## --text--
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| 
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| 在正则表达式中,怎么搜索一个 “$” 符号?
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| 
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| ## --answers--
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| 
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| $
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| 
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| ---
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| 
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| \\dollar\\
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| 
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| ---
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| 
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| \\$
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| 
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| ---
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| 
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| !$
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| 
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| ## --video-solution--
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| 
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| 3
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| 
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