dtong2468

 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('余額不足')
13             return
14 
15         self._balance -= amount
16 
17     def info(self):
18         print('持卡人姓名：',self._name)
19         print('持卡人賬號：',self._card_no)
20         print('持卡人賬戶余額：',self._balance)
21 
22     def get_balance(self):
23         return self._balance
24 
25 def main():
26     print('測試賬戶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('測試賬戶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()

 1 class Shape():
 2     def info(self):
 3         pass
 4 
 5     def area(self):
 6         pass
 7 
 8     def perimeter(self):
 9         pass
10 
11 class Rect(Shape):
12     def __init__(self,x = 0, y = 0, length = 2,width = 1):
13         self._x = x
14         self._y = y
15         self._width = width
16         self._length = length
17 
18     def info(self):
19         print(f'矩形左上角頂點坐標:({self._x},{self._y})')
20         print(f'矩形長:{self._length}')
21         print(f'矩形寬:{self._width}')
22 
23     def area(self):
24         return self._length * self._width
25 
26     def perimeter(self):
27         return (self._length+self._width)*2
28 
29 class Circle(Shape):
30     def __init__(self,x = 0,y = 0,radius = 1):
31         self._x = x
32         self._y = y
33         self._r = radius
34 
35     def info(self):
36         print(f'圓心:({self._x},{self._y})')
37         print(f'半徑:{self._r}')
38 
39     def area(self):
40         return 3.14*self._r*self._r
41 
42     def perimeter(self):
43         return 2*3.14*self._r
44 
45 class Triangle(Shape):
46     def __init__(self,a = 1,b = 1,c = 1):
47         self._a,self._b,self._c = a,b,c
48 
49     def info(self):
50         print(f'三角形邊長:({self._a},{self._b},{self._c})')
51 
52     def area(self):
53         s = (self._a + self._b + self._c)/2
54         ans = (s*((s-self._a)*(s-self._b)*(s-self._c))**0.5)
55 
56         return ans
57 
58     def perimeter(self):
59         return (self._a + self._b + self._c)
60 
61 def main():
62     print('測試1:'.center(40,'*'))
63 
64     shapes_lst1 = [Circle(),Rect(),Triangle()]
65 
66     for t in shapes_lst1:
67         t.info()
68         print(f'面積:{t.area():.2f}')
69         print(f'周長:{t.perimeter():.2f}')
70         print()
71 
72     print('測試2:'.center(40,'*'))
73 
74     shapes_lst2 = [Circle(x = 2, y = 2, radius = 10),
75                     Rect(x = 50, y = 50,length=10,width=5),
76                     Triangle(a = 3,b = 4, c = 5)]
77 
78     for t in shapes_lst2:
79         t.info()
80         print(f'面積:{t.area():.2f}')
81         print(f'周長:{t.perimeter():.2f}')
82 
83 if __name__ == '__main__':
84     main()

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'面積：{i.area():.2f}')
8     print(f'周長：{i.perimeter():.2f}')
9     print()

 1 import math
 2 
 3 def func(x):
 4     m = 0
 5     s = 2
 6     fx = 1/(pow(2*math.pi,0.5)*s)*math.exp((-1/2)*pow((x-m)/s,2))
 7     return fx
 8 
 9 def main():
10     x = [i for i in range(1,10,2)]
11     for i in x:
12         print(f'x = {i},f = {func(i):.8f}')
13 
14 main()

 1 from random import choice
 2 
 3 class RandomWalk():
 4 
 5     def __init__(self,num_points = 5000):
 6 
 7         self.num_points = num_points
 8 
 9         self.x_values = [0]
10         self.y_values = [0]
11 
12     def fill_walk(self):
13 
14         while len(self.x_values) < self.num_points:
15             x_direction = choice([1,-1])
16             x_distance = choice([0,1,2,3,4])
17             x_step = x_direction*x_distance
18 
19             y_direction = choice([1,-1])
20             y_distance = choice([0,1,2,3,4])
21             y_step = y_direction*y_distance
22 
23             if x_step == 0 and y_step == 0:
24                 continue
25 
26             next_x = self.x_values[-1] + x_step
27             next_y = self.y_values[-1] + y_step
28 
29             self.x_values.append(next_x)
30             self.y_values.append(next_y)
31 
32 def main():
33     rw = RandomWalk(5)
34     rw.fill_walk()
35     print(rw.x_values)
36     print(rw.y_values)
37 
38 if __name__ == '__main__':
39     main()

 1 from matplotlib import pyplot as plt
 2 from random_walk import RandomWalk
 3 from time import sleep
 4 
 5 n = 0
 6 while n< 2 :
 7     n += 1
 8 
 9     rw = RandomWalk(50000)
10     rw.fill_walk()
11 
12     plt.figure(figsize = (10,6), dpi = 128)
13     point_numbers = list(range(rw.num_points))
14     plt.scatter(rw.x_values,rw.y_values,c = point_numbers,cmap = plt.cm.Blues,edgecolor = 'none',s=1)
15 
16     plt.scatter(0,0,c = 'grey',edgecolors = 'none',s = 100)
17     plt.scatter(rw.x_values[-1],rw.y_values[-1],c = 'red',edgecolors = 'none',s = 100)
18 
19     plt.axis('off')
20 
21     plt.show()