在循环中运行main（）时重置所有变量

Question

当我询问用户：“Doyouwanttoruntheprogrammearth”时，我希望再次运行一个程序。不去退出，是的循环和运行主要再次。但是我注意到python保存了旧的变量赋值。有没有一种快速的方法来清除内存，以便在程序循环时再次存储新的变量？你知道吗

现在我得到的是：请关闭程序并重新打开它！想让它更优雅：

到目前为止我得到的是：

def main()
    print("Do you want to solve another problem?")
    answer = input()
    while answer not in["yes","no"]:
        answer = input()

    if answer == "yes":
        print("Please close the program and rerun it")
        #main() #<-this is not working as expected
    else:
        exit()

Answer 1

您可以做的一件事是本地化变量并使用clean-up函数来处理启动新会话

def main()
    print("Do you want to solve another problem?")
    answer = input()
    while answer not in["yes","no"]:
        answer = input()

    if answer == "yes":
        answer = None
        print("Please close the program and rerun it")
        #main() #<-this is not working as expected
    else:
        exit()

区别在于if answer == 'yes'将设置answer = None以清除它