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()