Question

一个菜鸟问题我敢肯定。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()

如何在方法完成后再次显示此菜单而不是程序终止？

我以为我可以将整个程序包装成无限循环，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()

如果无限循环“感觉不对”，请问自己何时以及为何应该结束。你有第三个输入选项退出循环吗？然后添加：

if menu == "3":
    break

Answer 2

无限循环是这样做的方式，如下所示：

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()

python运行方法后重启程序

2 个答案: