如何重复代码

Question

我是python的初学者，我想重复我的代码来自Answer = raw_input（＆＃34;你想变得更好吗？＆＃34;）如果用户输入的内容不是no或yes，因为在说＆＃34;你只能选择是或否＆＃34;代码结束，它不会再问一次

Extract

Answer 1

你只需要while循环:)

choosing_options = ["Yes","No"] 
answer = None

while (answer not in choosing_options):
    answer = raw_input("Do you want to become better?")

    if answer == 'Yes' :
        print 'Great We Will Start Tommorow, meet me at Jhon\'s backyard at 3 AM  '
    elif answer == 'No' :
        print "Well too bad, meet me again if you change your mind " 

Answer 2

要无限期重复代码块，请使用while 1:。例如：

choosing_options = ["Yes","No"] 

while 1:
  Answer = raw_input("Do you want to become Better?")    
  if Answer == 'Yes' :
    print 'Great We Will Start Tommorow, meet me at Jhon\'s backyard at 3 AM  '
  elif Answer == 'No' :
    print "Well too bad, meet me again if you change your mind " 
  elif Answer != choosing_options :
    print "You can only choose yes or no!!"  

Answer 3

根据我的理解，您希望将代码运行到是，并将其结束为否。

choosing_options = ["Yes","No"] 
Answer = "Yes"

while Answer == "Yes":
  Answer = raw_input("Do you want to become Better?")    
  if Answer == 'Yes' :
    print 'Great We Will Start Tommorow, meet me at Jhon\'s backyard at 3 AM  '
  elif Answer == 'No' :
    print "Well too bad, meet me again if you change your mind " 
  elif Answer != choosing_options :
    print "You can only choose yes or no!!"  

这不是您的要求，请回复。