Python編程無意循環

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 

這是我的代碼。由於某種原因，它會一直進入無限循環。一旦用戶選擇他們的選項，我該如何停止它？我只需要在那裏輸入用戶選擇一次的選項。

Answer 1

您需要在while循環的結尾添加行

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

。這將再次要求用戶輸入，如果它是c或C，它將退出。

您還應該更改您的while條件。使用or將導致它始終爲False。您可能應該使用while True（因爲c輸入在循環內進行檢查）。

Answer 2

希望這會幫助你，只需要改變你的條件到True並改變你的期權聲明的位置。

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