蟒蛇如何从<code>MainMenuInput == 1</code>打印先前输入

Question

def MainMenu(): 
    print("Enter 1 to set values") 
    print("enter 2 to display values") 
    MainMenuInput = int(input("Enter: ")) 
    if MainMenuInput == "1": 
     setgen() 
     MainMenu() 
    elif MainMenuInput == "2": 
     print (fjuv) 

def setgen(): 
    fjuv = int(input("Amount of juveniles between 0 and 25?")) 
    MainMenu() 

MainMenu() 
setgen() 

如何做到让等MainMenuInput == 2它打印的价值是在DEF代码setgen?

Answer 1

要做到这一点，你需要/可以通过定义一个全局变量将global放入代码的初始化部分，该代码在定义变量之前运行。

Answer 2

def MainMenu(): 
    while True: 
     print("Enter 1 to set values") 
     print("enter 2 to display values") 
     MainMenuInput = int(input("Enter: ")) 
     if MainMenuInput == 1: 
      setgen() 
     elif MainMenuInput == 2: 
      print (setgen.fjuv) 

def setgen(): 
    setgen.fjuv = int(input("Amount of juveniles between 0 and 25?")) 
    MainMenu() 

MainMenu() 

它在那里完成。通过做setgen.variable

代码是很破，现在大多固定setgen

访问变量。你要求整数输入MainMenuInput = int(input("Enter: "))然后比较字符串MainMenuInput == "1"，不会工作。 （固定）