实验七

1：

 1 class Account:
 2     def __init__(self, name, account_number, initial_amount = 10):
 3         self._name = name
 4         self._card_no = account_number
 5         self._balance = initial_amount
 6 
 7     def deposit(self, amount):
 8         self._balance += amount
 9 
10     def withdraw(self, amount):
11         if self._balance < amount:
12             print('余额不足')
13             return
14 
15         self._balance -= amount
16 
17     def info(self):
18         print('持卡人姓名:', self._name)
19         print('持卡人账号:', self._card_no)
20         print('持卡人账户余额:', self._balance)
21 
22     def get_balance(self):
23         return self._balance
24 
25 def main():
26     print('测试账户1:'.center(30,'*'))
27     a1 = Account('Bob','5002311',20000)
28     a1.deposit(5000)
29     a1.withdraw(4000)
30     a1.info()
31 
32     print()
33 
34     print('测试账户2:：'.center(30,'*'))
35     a2 = Account('Joe','5006692',20000)
36     a2.withdraw(10000)
37     a2.withdraw(5000)
38     a2.info()
39 
40 if __name__ == '__main__':
41     main()

截图：

7.2：

 1 class Shape:
 2     def info(self):
 3         pass
 4     def area(self):
 5         pass
 6     def perimeter(self):
 7         pass
 8 
 9 class Rect(Shape):
10     def __init__(self,x = 0, y = 0, length = 2, width = 1):
11         self._x = x
12         self._y = y
13         self._width = width
14         self._length = length
15 
16     def info(self):
17         print(f'矩形左上角顶点坐标:({self._x}, {self._y})')
18         print(f'矩形长:{self._length}')
19         print(f'矩形宽:{self._width}')
20 
21     def area(self):
22         return self._length * self._width
23     def perimeter(self):
24         return (self._length + self._width) * 2
25 
26 class Circle(Shape):
27     def __init__(self,x=0, y=0, radius = 1):
28         self._x =x
29         self._y = y
30         self._r = radius
31 
32     def info(self):
33         print(f'圆心:({self._x},{self._y})')
34         print(f'半径:{self._r}')
35 
36     def area(self):
37         return 3.14*self._r*self._r
38 
39     def perimeter(self):
40         return 2 * 3.14 *self._r
41 
42 class Triangle(Shape):
43     def __init__(self,a=1,b=1,c=1):
44         self._a, self._b, self._c = a, b, c
45 
46     def info(self):
47         print(f'三角形三边长:({self._a}, {self._b}, {self._c})')
48 
49     def area(self):
50         s = (self._a +self._b+self._c)/2
51         ans = (s*(s-self._a)*(s-self._b)*(s-self._c)) **0
52 
53         return ans
54 
55     def perimeter(self):
56         return (self._a + self._b + self._c)
57 
58 def main():
59     print('测试1:'.center(40,'*'))
60 
61     shapes_lst1 = [Circle(), Rect(), Triangle()]
62     for t in shapes_lst1:
63         t.info()
64         print(f'面积:{t.area():.2f}')
65         print(f'周长:{t.perimeter():.2f}')
66         print()
67 
68     print('测试2:'.center(40,'*'))
69 
70     shapes_lst2 = [Circle(x = 2, y = 2, radius = 10),
71                    Rect(x = 50, y = 50, length = 10, width = 5),
72                    Triangle(a=3,b=4,c=5)]
73     for t in shapes_lst2:
74         t.info()
75         print(f'面积:{t.area():.2f}')
76         print(f'周长:{t.perimeter():.2f}')
77         print()
78 
79 if __name__ == '__main__':
80     main()

截图：

 task2

1 from shape import Rect,Circle
2 
3 shape_lst = [Rect(5,5,10,5),Circle(),Circle(1,1,10)]
4 
5 for i in shape_lst:
6     i.info()
7     print(f'面积:{i.area():.2f}')
8     print(f'周长:{i.perimeter():.2f}')
9     print()

截图：

 

posted @ 2023-06-11 20:40  kuma-ja  阅读(9)  评论(0)    收藏  举报