我一直在使用输入函数作为暂停脚本的一种方式:
print("something")
wait = input("Press Enter to continue.")
print("something")
有正式的方式吗?
我一直在使用输入函数作为暂停脚本的一种方式:
print("something")
wait = input("Press Enter to continue.")
print("something")
有正式的方式吗?
当前回答
正如mhawke和steveha的评论所指出的,这个问题的最佳答案是:
Python 3. x:
input('Press <ENTER> to continue')
Python 2. x:
raw_input('Press <ENTER> to continue')
For a long block of text, it is best to use input('Press <ENTER> to continue') (or raw_input('Press <ENTER> to continue') on Python 2.x) to prompt the user, rather than a time delay. Fast readers won't want to wait for a delay, slow readers might want more time on the delay, someone might be interrupted while reading it and want a lot more time, etc. Also, if someone uses the program a lot, he/she may become used to how it works and not need to even read the long text. It's just friendlier to let the user control how long the block of text is displayed for reading.
轶事:曾经有一段时间,程序使用“按[ANY]键继续”。这个失败了,因为人们抱怨他们在键盘上找不到ANY键:)
其他回答
我和喜欢简单解决方案的非程序员一起工作:
import code
code.interact(banner='Paused. Press ^D (Ctrl+D) to continue.', local=globals())
这产生了一个几乎完全像真正的解释器一样的解释器,包括当前上下文,只有输出:
Paused. Press ^D (Ctrl+D) to continue. >>>
Python调试器也是暂停的好方法。
import pdb
pdb.set_trace() # Python 2
or
breakpoint() # Python 3
正如mhawke和steveha的评论所指出的,这个问题的最佳答案是:
Python 3. x:
input('Press <ENTER> to continue')
Python 2. x:
raw_input('Press <ENTER> to continue')
For a long block of text, it is best to use input('Press <ENTER> to continue') (or raw_input('Press <ENTER> to continue') on Python 2.x) to prompt the user, rather than a time delay. Fast readers won't want to wait for a delay, slow readers might want more time on the delay, someone might be interrupted while reading it and want a lot more time, etc. Also, if someone uses the program a lot, he/she may become used to how it works and not need to even read the long text. It's just friendlier to let the user control how long the block of text is displayed for reading.
轶事:曾经有一段时间,程序使用“按[ANY]键继续”。这个失败了,因为人们抱怨他们在键盘上找不到ANY键:)
非常简单:
raw_input("Press Enter to continue ...")
print("Doing something...")
这对我来说似乎很好(或Python 2.X中的raw_input())。或者,如果想要暂停特定的秒数,也可以使用time.sleep()。
import time
print("something")
time.sleep(5.5) # Pause 5.5 seconds
print("something")
所以,我发现这在我的编程工作中非常有效。我只是在程序的最开始创建了一个函数,
def pause():
programPause = raw_input("Press the <ENTER> key to continue...")
现在我可以在任何需要的时候使用pause()函数,就像我在写一个批处理文件一样。例如,在这样的程序中:
import os
import system
def pause():
programPause = raw_input("Press the <ENTER> key to continue...")
print("Think about what you ate for dinner last night...")
pause()
很明显,这个项目没有目标,只是举个例子,但你可以准确地理解我的意思。
注意:对于Python 3,你需要使用input而不是raw_input