我已經(jīng)嘗試在 SO 上進行谷歌搜索和搜索，但我無法弄清楚為什么我在倒數(shù)第二行的中斷沒有退出 while 循環(huán)。更好的是，我無法弄清楚為什么循環(huán)也沒有繼續(xù)。我的意圖是讓用戶有可能在最后一次選擇之后前往主菜單（基本上是 menuchoice 的 while 循環(huán)（這是我在此處粘貼的一個循環(huán)）。有什么建議么？先感謝您。感覺就像我錯過了一些必不可少的東西。#this is going to show how many exercise weapons you need for next magic levelif menuchoice == "4": #these functions returns the amount of magic wands/rods that is needed to be spent for next magic level print("Select vocation") print("Press P for Royal Paladin") #ask user to input vocation: while True: vocationchoice = input() if vocationchoice == "P" or vocationchoice == "p": #ask user to input magic level for paladin num1 = float (input("Enter your magic level: ")) #ask for own training dummy print("Do you have your own exercise dummy? Type Y for yes and N for no.") while True: trainingdummy = input() if trainingdummy == "y" or trainingdummy == "Y": #list the different exercise weapons print("Select exercise weapon:") print("1. Training rod") #loop, where we ask user to input what exercise weapon they want to calculate while True: while True: weaponchoice = input() if weaponchoice == "q": sys.exit() #quit the program if weaponchoice == "1" or weaponchoice == "2" or weaponchoice == "3" or weaponchoice == "f": break #break out of the input loop #User choice if weaponchoice == "1": print("The amount of training rods needed for next magic level is " + str((nextmaglvlpalwithdummy(num1))) + ".")
3 回答
白豬掌柜的
TA貢獻1893條經(jīng)驗 獲得超10個贊
首先，您應該在命令中打印內(nèi)容，input()因為它會在 intent: 中被清除input("Text to display")。
其次，如果你想退出到主菜單，你需要打破每個嵌套循環(huán)。在這里你只打破最內(nèi)層的循環(huán)。
在 Python 中沒有g(shù)oto指令也沒有命名循環(huán)，您可以使用標志。當 used 按下“F”時，標志設置為 true，然后在每個外部嵌套循環(huán)的開頭使用該標志來中斷它們。它看起來像這樣：
while True: # This is your menu loop
menuFlag = False # Declare and set the flag to False here
menu = input("Choose the menu: ")
# ...
while True: # Choose character loop
if menuFlag: break # Do not forget to break all outer loops
character = input("Choose a character: ")
# ...
while True: # Any other loop (choose weapon, ...)
weapon = input("Choose weapon: ")
# Here you want to return to the menu if f is pressed
# Set the flag to True in this condition
if weapon == "f":
menuFlag = True
break
在您的游戲中，這類似于：
goToMainMenu = False
while True:
if goToMainMenu: break
vocationchoice = input("Select vocation.\nPress P for Royal Paladin: ")
if vocationchoice == "P" or vocationchoice == "p":
#ask user to input magic level for paladin
num1 = float (input("Enter your magic level: "))
#ask for own training dummy
while True:
if goToMainMenu: break
trainingdummy = input("Do you have your own exercise dummy?\nType Y for yes and N for no: ")
if trainingdummy == "y" or trainingdummy == "Y":
#loop, where we ask user to input what exercise weapon they want to calculate
while True:
while True:
weaponchoice = input("Select exercise weapon:\n1. Training rod: ")
if weaponchoice == "q":
sys.exit() #quit the program
if weaponchoice == "1" or weaponchoice == "2" or weaponchoice == "3" or weaponchoice == "f":
break #break out of the input loop
#User choice
if weaponchoice == "1":
print("The amount of training rods needed for next magic level is " + str((nextmaglvlpalwithdummy(num1))) + ".")
if trainingdummy == "n" or trainingdummy == "N":
#list the different exercise weapon
#loop where ask user to input what exercise weapon they want to calculate
while True:
weaponchoice = input("Select exercise weapon (press F for main menu):\n1. Training rod: ")
#User choice
if weaponchoice == "1":
print("The amount of training rods needed for next magic level is " + str((nextmaglvlpalwithdummy(num1))) + ".")
elif weaponchoice == "f" or weaponchoice == "F":
goToMainMenu = True
break
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