1 print('hehda---------------------------------------------------------------------------------------------------------------------------------------------')
2
3 class MyClass:
4 i = 123456
5 def f(self):
6 # print('The function in class')
7 return 'hhe '
8 x = MyClass()
9 # print(MyClass.i)
10 # print(MyClass.f())
11
12 print(x.i)
13 print(x.f())
14 print('hehda----------------------------------------------------------------------------------------------------------------------------------------')
15
16 class complex:
17 def __init__(self,realpart,imagpart):
18 self.r = realpart
19 self.i = imagpart
20 x = complex(3.0,4.5)
21 print(x.r,x.i)
22
23
24
25 print('hehda----------------------------------------------------------------------------------------------------------')
26
27 class Test:
28 def prt(self):
29 print(self)
30 print(self.__class__)
31
32 t = Test()
33 t.prt()
34
35
36
37 print('hehda--------------------------------------------------------------------------------------------------------------------------------------------')
38 class info:
39 name = ''
40 age = 0
41 __weight = 0
42 def info1(self,n,a,w):
43 self.name = n
44 self.age = a
45 self.__weight = w
46 def speak(self):
47 print('{0}说我{1}了重'.format(self.name,self.age,self.__weight))
48
49 p = info()
50 p.info1('Runoob',10,30)
51 p.speak()
52 # runoob 说: 我 10 岁。
53
54
55 print('hehda---------------------------------------------------------------------------------------------------------------------------------------')
56 class info:
57 name = ''
58 age = 0
59 __weight = 0
60 def info1(self,n,a,w):
61 self.name = n
62 self.age = a
63 self.__weight = w
64 def speak(self):
65 print('{0}说我{1}了重{2}'.format(self.name,self.age,self.__weight))
66
67 p = info()
68 p.info1('Runoob',10,30)
69 p.speak()
70 # runoob 说: 我 10 岁。
71 '-----------对比以上两种写法---------------------'
72 class people:
73 name = ''
74 age = 0
75 __weight = 0
76 def __init__(self,n,a,w):
77 self.name = n
78 self.age = a
79 self.__weight = w
80 def speak(self):
81 print('{0}speak i am {1} years old and {2} weight'.format(self.name,self.age,self.__weight))
82
83 p = people('Runoob',10,20)
84 p.speak()
85
86
87 print('inherit----------------------------------------------------------------------------------------------------------------------------------------')
88 class people:
89 name = ''
90 age = 0
91 __weight = 0
92 def __init__(self,n,a,w):
93 self.name = n
94 self.age = a
95 self.__weight = w
96 def speak(self):
97 print('{0}speak i am {1} years old and weight {2}kg'.format(self.name,self.age,self.__weight))
98
99 # p = people('Jo1',28,45)
100 # p.speak()
101 class student(people):
102 grade = ''
103 def __init__(self,n,a,w,g):
104 people.__init__(self,n,a,w)
105 self.grade = g
106 def speak(self):
107 #打印内容中如果添加上self.__weight是错误的，__私有的只能在内部访问，在这个函数中不能访问
108 print('{0}speak i am {1} years ild and weight kg and in class {2}'.format(self.name,self.age,self.grade))
109
110 info = student('Jo',22,45,'6')
111 info.speak()
112
113
114
115
116 print('inherit---------------------------------------------------------------------------------------------------------------------------------------------')
117 # class DerivedClassName(modlename.BaseClassName)
118 # 我叫 Tim，我是一个演说家，我演讲的主题是 Python
119
120 class people:
121 name = ''
122 age = 0
123 __weight = 0
124 def __init__(self,n,a,w):
125 self.name = n
126 self.age = a
127 self.__weight = w
128 def speak(self):
129 print('My name is {0},i am {1} years old and weight {2}kg'.format(self.name,self.age,self.__weight))
130
131 # p = people('Jo1',28,45,)
132 # p.speak()
133
134 class student(people):
135 grade = ''
136 def __init__(self,n,a,w,g):
137 people.__init__(self,n,a,w)
138 self.grade = g
139 def speak(self):
140 print('My name is {0},i am {1} years old and weight and in class {2}'.format(self.name,self.age,self.grade))
141
142 # s = student('jo2',29,46,'6')
143 # s.speak()
144
145 class speaker:
146 #这里变量的声明发现有没有都可
147 # name = ''
148 # topic = ''
149 def __init__(self,n,t):
150 self.name = n
151 self.topic = t
152 def speak(self):
153 print('My name is {0} .My topic is {1}'.format(self.name,self.topic))
154
155 # sp = speaker('Jo3','Python')
156 # sp.speak()
157
158 class sample(speaker,student):
159 def __init__(self,n,a,w,g,t):
160 student.__init__(self,n,a,w,g)
161 speaker.__init__(self,n,t)
162
163 test = sample('Jo4',30,47,'8','Python')
164 test.speak()
165
166
167
168
169 print('methods to rewrite------------------------------------------------------------------------------------------------------------------------------')
170 class Parent:
171 def myMethod(self):
172 print('调用父类方法')
173
174 class Child(Parent):
175 def myMethod(self):
176 print('调用子类方法')
177
178 c = Child()
179 c.myMethod()
180 super(Child,c).myMethod()
