22 lines
		
	
	
		
			601 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			601 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| title: Sleep How Can I Make a Time Delay in Python
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| localeTitle: 睡眠如何在Python中延迟时间
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| ---
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| ## 睡眠如何在Python中延迟时间
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| 
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| Python标准库中的`time`模块包含函数`sleep()` ,该函数将程序暂停给定的秒数。
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| 
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| 例:
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| ```
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| import time 
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|  
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|  for letter in 'hello, world!': 
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|     print(letter) 
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|     time.sleep(2)  # sleep 2 seconds between each print 
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| ```
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| 
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| 浮点数可以作为`sleep()`的参数给出,以获得更精确的睡眠时间。
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| 
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| #### 更多信息:
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| 
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| 关于睡眠功能的时间模块[文档](https://docs.python.org/3/library/time.html#time.sleep) 。 |