# 定义退出条件exit_condition=Falsewhilenotexit_condition:# 接收用户输入user_input=input("请输入:")# 判断是否满足退出条件ifuser_input=="exit":exit_condition=True 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 最后,当满足退出条件时,我们可以使用break语句跳出循环,结束程序的运行。 # 定义退出条件exit_...
exit()函数用于退出程序。这是因为我们将在循环中等待用户输入,而用户输入任何键位都可以退出循环。 importsys 1. 步骤2:创建一个无限循环 接下来,我们需要创建一个无限循环,以便程序可以持续运行,直到用户输入任何键位退出。 whileTrue: 1. 步骤3:等待用户输入 在循环内部,我们使用input()函数等待用户输入。此函数...
else:#输入对或输入错,这一段都执行 ‘program exit’,print('program exit') def user_loop(): pass # a=0 # while a<3: # user_input() # a+=1 #user_loop() user_login()#调用 3次登录函数 代码 def lock_user_fi(): """user locked file""" with open('locked.txt') as lock_fi:...
values = ['Option1','Option2','Option3'], scroll_exit=True) ms2= F.add(npyscreen.TitleMultiSelect, max_height =-2, value = [1,], name='Pick Several', values = ['Option1','Option2','Option3'], scroll_exit=True) # This lets the user interact with the Form. F.edit() print(...
So. How can I let the user break out of the loop? Also, I don't want to use keyboard interrupt, because the script needs to continue to run after the while loop is terminated. The easiest way is to just interrupt it with the usualCtrl-C(SIGINT). ...
[GCC5.4.020160609] on linux2Type"help","copyright","credits"or"license"formore information.>>>exit() 粗体:表示新术语、重要单词或屏幕上看到的单词。例如,菜单或对话框中的单词会以这种形式出现在文本中。例如:“在‘拓扑设计’选项中,我将‘管理网络’选项设置为‘共享平面网络’,以便在虚拟路由器上使用...
# 使用多个excepct 的try语句,处理异常 try: n = int(input('number: ')) # 没有输入任何值,回车,产生ValueError异常 print(n) except ValueError: # 当异常ValueError发生时,执行print() print('无效的输入') except KeyboardInterrupt: # Ctrl + C,产生KeyboardInterrupt,用户中断执行 print('\nBye-bye'...
dodup i cells + @dup name>string type spacename>interpret >body @ . crloopdrop ; \ Find last LF character in string, or return -1.: find-eol ( addr u -- eol-offset|-1 )begin1- dup 0>=while2dup + c@ 10 = ifnip exitthenrepeatnip ;...
config import SERVICE_CLASS_NAME PythonService = autoclass(SERVICE_CLASS_NAME) self.mService = PythonService.mService self.loop_running = True # Loop while self.loop_running: # set False in response to some message sleep(0.1) self.mService.stopSelf()...
The guard often takes the form of a loop counter that increments with every iteration. Here are a few examples of cases where a while statement could be used: A user is repeatedly prompted for a password until they enter it correctly. A program accepts and processes new input until the ...