Python编程无意循环

Question

counter=0 
initials=0 
name1=raw_input("Please enter your first name!") 
name2=raw_input("Please enter your middle name!") 
name3=raw_input("Please enter your last name!") 
option=str(raw_input("a)Print the length of my name\nb)Print\nc)Exit\nChoose one of the options.")) 
while option != "c" or option != "C": 
    if (option=="a" or option=="A"): 
     print "Your first name has " + str(len(name1)) + " letters." 
     print "Your second name has " + str(len(name2)) + " letters." 
     print "Your last name has " + str(len(name3)) + " letters." 
    elif (option=="b" or option=="B"): 
     print name1[0] + "." + name2[0] + "." + name3[0] 
    elif (option=="c" or option=="C"): 
     break 

这是我的代码。由于某种原因，它会一直进入无限循环。一旦用户选择他们的选项，我该如何停止它？我只需要在那里输入用户选择一次的选项。

Answer 1

您需要在while循环的结尾添加行

option=str(raw_input("a)Print the length of my name\nb)Print\nc)Exit\nChoose one of the options.")) 

。这将再次要求用户输入，如果它是c或C，它将退出。

您还应该更改您的while条件。使用or将导致它始终为False。您可能应该使用while True（因为c输入在循环内进行检查）。

Answer 2

希望这会帮助你，只需要改变你的条件到True并改变你的期权声明的位置。

counter=0 
initials=0 
name1=raw_input("Please enter your first name!") 
name2=raw_input("Please enter your middle name!") 
name3=raw_input("Please enter your last name!") 

while True: 
    option=str(raw_input("a)Print the length of my name\nb)Print\nc)Exit\nChoose one of the options.")) 
    if (option=="a" or option=="A"): 
     print "Your first name has " + str(len(name1)) + " letters." 
     print "Your second name has " + str(len(name2)) + " letters." 
     print "Your last name has " + str(len(name3)) + " letters." 
    elif (option=="b" or option=="B"): 
     print name1[0] + "." + name2[0] + "." + name3[0] 
    elif (option=="c" or option=="C"): 
     break