异常处理及程序设计

1.模拟幼儿园分苹果

def division():
    print("==========分苹果了==========")
    apple = int(input("请输入苹果的个数:"))
    children = int(input("请输入来了几个小朋友:"))
    result = apple//children
    remain = apple - result*children
    if remain>0:
        print(apple,"个苹果,平均分给",children,"个小朋友,每个分",result,"个,剩下",remain,"个")
    else:
        print(apple, "个苹果,平均分给", children, "个小朋友,每个分", result, "个")
if __name__ == '__main__':
    division()
结果：

 2.模拟幼儿园分苹果（除数不能为零）

def division():
    print("==========分苹果了==========")
    apple = int(input("请输入苹果的个数:"))
    children = int(input("请输入来了几个小朋友:"))
    result = apple//children
    remain = apple - result*children
    if remain>0:
        print(apple,"个苹果,平均分给",children,"个小朋友,每个分",result,"个,剩下",remain,"个")
    else:
        print(apple, "个苹果,平均分给", children, "个小朋友,每个分", result, "个")
if __name__ == '__main__':
    try:
        division()
    except ZeroDivisionError:
        print("\n出错了~_~--苹果不能被0个小朋友分")
结果：

 3..模拟幼儿园分苹果（每个人至少分到一个苹果）

def division():
    print("==========分苹果了==========")
    apple = int(input("请输入苹果的个数:"))
    children = int(input("请输入来了几个小朋友:"))
    if apple < children:
        raise ValueError("苹果太少了,不够分")
    result = apple//children
    remain = apple - result*children
    if remain>0:
        print(apple,"个苹果,平均分给",children,"个小朋友,每个分",result,"个,剩下",remain,"个")
    else:
        print(apple, "个苹果,平均分给", children, "个小朋友,每个分", result, "个")
if __name__ == '__main__':
    try:
        division()
    except ZeroDivisionError:
        print("\n出错了~_~--苹果不能被0个小朋友分")
    except ValueError as e:
        print("\n出错了~_~--",e)
结果：

 4.模拟幼儿园分苹果（应用断言调试）

def division():
    print("==========分苹果了==========")
    apple = int(input("请输入苹果的个数:"))
    children = int(input("请输入来了几个小朋友:"))
    assert apple >= children,"苹果不够分"
    result = apple//children
    remain = apple - result*children
    if remain>0:
        print(apple,"个苹果,平均分给",children,"个小朋友,每个分",result,"个,剩下",remain,"个")
    else:
        print(apple, "个苹果,平均分给", children, "个小朋友,每个分", result, "个")
if __name__ == '__main__':
    try:
        division()
    except AssertionError as e:
        print("\n输入有误:",e)
结果：