python运行方法后重新启动程序

Question

我确定有一个noob问题。例如，假设我有一个看起来像这样的程序。

def method1(): 
    #do something here 

def method2(): 
    #do something here 

#this is the menu 
menu=input("What would you like to do?\ntype 1 for method1 or 2 for method2: ") 
if(menu=="1"): 
    method1() 
if(menu=="2"): 
    method2() 

如何让该菜单在方法结束而不是程序终止后再次出现？

我想我可以包住整个程序进入一个死循环，但感觉不对：P

Answer 1

while True: 
    #this is the menu 
    menu=input("What would you like to do?\ntype 1 for method1 or 2 for method2: ") 
    if(menu=="1"): 
     method1() 
    if(menu=="2"): 
     method2() 

如果死循环“感觉不对”，问自己何时为什么它应该结束。你应该有第三个输入选项退出循环？然后加入：

if menu == "3": 
    break 

Answer 2

无限循环是这样做虽然方式是这样的：

running = true 

def method1(): 
    #do something here 

def method2(): 
    #do something here 

def stop(): 
    running = false 

while running: 
    #this is the menu 
    menu=input("What would you like to do?\ntype 1 for method1 or 2 for method2 (3 to stop): ") 
    if(menu=="1"): 
     method1() 
    if(menu=="2"): 
     method2() 
    if(menu=="3"): 
     stop()