sleep()是在python 3的time()模块中定义的。有时，需要破坏程序的流程，以便可以进行其他几次执行，或者仅仅是由于所需的实用程序。在这种情况下，sleep()可以派上用场，它提供了一种准确而灵活的方式来在任何时间段内停止代码流。此函数讨论此函数的见解。
语法：sleep(sec)参数：sec：要求停止代码的秒数。返回：VOID。
代码1：展示sleep()
Python3
# Python code to demonstrate
# working of sleep()
import time
# printing the start time
print("The time of code execution begin is:", end ="")
print(time.ctime())
# using sleep() to hault the code execution
time.sleep(6)
# printing the end time
print("The time of code execution end is:", end ="")
print(time.ctime())输出：
The time of code execution begin is:Mon Apr 9 20:57:10 2018 The time of code execution end is:Mon Apr 9 20:57:16 2018
应用：
sleep()用于许多应用程序。如果以固定间隔重复执行后台线程，则可以借助sleep()来实现。另一个流行的应用程序是使用sleep()逐字母打印单词，以获得良好的用户接口。后者由下面的代码表示。
代码2：演示sleep()的应用
Python3
# Python code to demonstrate
# application of sleep()
import time
# initializing string
strn = "GeeksforGeeks"
# printing geeksforgeeks after delay
# of each character
for i in range(0, len(strn)):
print(strn[i], end ="")
time.sleep(2)输出：
GeeksForGeeks
Note: Visible effect of sleep() can be seen in the local editor.
代码3：在列表中创建时间延迟
Python3
# importing time package
import time
# creating a time delay of 5 seconds
time.sleep(5)
# creating and Initilizing a list
myList = ['Jai', 'Shree', 'RAM', 5, 'August', 2020]
# the list will be displayed after the delay of 5 seconds
print(myList)输出：
延迟5秒后，我们将获得以下输出：
['Jai', 'Shree', 'RAM', 5, 'August', 2020]
代码4：在元组中创建时间延迟
Python3
# importing time package
import time
# creating a time delay of 4 seconds
time.sleep(4)
# creating and Initilizing a tuple
mytuple = ('Anil Kumbl', 'Sachin Tendulkar', 'Sunil Gavaskar', 'Rahul Dravid', 'Mahendra Singh Dhoni',
'Dennis Lillee', 'Muttiah Muralitharan', 'Shane Warne')
# the tuple will be displayed after the delay of 4 seconds
print(mytuple)输出：
延迟4秒后，我们将获得以下输出：
('Anil Kumbl', 'Sachin Tendulkar', 'Sunil Gavaskar', 'Rahul Dravid',
'Mahendra Singh Dhoni', 'Dennis Lillee', 'Muttiah Muralitharan', 'Shane Warne')
代码5：创建多个时间延迟
Python3
# importing time package
import time
# creating and Initilizing a list
Languages = ['Java', 'C++', 'Python', 'Javascript', 'C#', 'C', 'Kotlin']
# creating a time delay of 5 seconds
time.sleep(5)
# the list will be displayed after the delay of 5 seconds
print(Languages)
for lan in Languages:
# creating a time delay of 13 seconds
time.sleep(13)
# After every 13 seconds an item of list will be displayed
print(lan)输出：
延迟5秒后，列表将显示为：
['Java', 'C++', 'Python', 'Javascript', 'C#', 'C', 'Kotlin']
然后，每隔13秒，列表项将显示为：
Java C++ Python Javascript C# C Kotlin
代码6：列表理解中的时间延迟
Python3
# importing time package
import time
# creating and Initilizing a list
cricketers = ['Anil Kumble', 'Sachin Tendulkar', 'Sunil Gavaskar', 'Rahul Dravid', 'Mahendra Singh Dhoni',
'Dennis Lillee', 'Muttiah Muralitharan', 'Shane Warne']
# time delay of 7 seconds is created
# after every 7 seconds item of list gets displayed
cricketers = [(time.sleep(7), print(cric)) for cric in cricketers]输出：
每隔7秒，列表中的项目将显示为：
Anil Kumble Sachin Tendulkar Sunil Gavaskar Rahul Dravid Mahendra Singh Dhoni Dennis Lillee Muttiah Muralitharan Shane Warne
代码7：在列表中创建3分钟的延迟
Python3
# importing time package
import time
# creating and Initilizing a list
Languages = ['Java', 'C++', 'Python', 'Javascript', 'C#', 'C', 'Kotlin']
# creating a time delay of 3 minutes
time.sleep(3 * 60)
# the list will be displayed after the delay of 3 minutes
print(Languages)输出：
延迟3分钟后，列表将显示为：
['Java', 'C++', 'Python', 'Javascript', 'C#', 'C', 'Kotlin']
注：本文由纯净天空筛选整理自manjeet_04大神的英文原创作品 time.sleep() in Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。