class MyArray:
'''保证输入的内容是整型、浮点型'''
def ___isNumber(self, num):
if not isinstance(num, (int,float)):
return False
return True

#开始写构造函数,接受可变长度的数组
def __init__(self, *args):
if args == None:
self.__value = []
else:
for a in args:
if not self.___isNumber(a):
print('All elements must be number!')
#self.__value 是一个数组
self.__value = list(args)

#打印输出当前的self.__value
def printSelf(self):
#这个self是一个地址
print(self)
#这个self.__value是一个数组
print(self.__value)

#重载len(Array)这个方法
def __len__(self):
return len(self.__value)

#append方法
def append(self, other):
self.__value.append(other)
#注意:此处不能够直接return self.__value.append(other)
#这个方法执行后没有返回值
return self.__value

#重载运算符+
def __add__(self,other):
if self.___isNumber(other):
#如果other 是一个数,则数组里每一个元素都加上other
array = MyArray()
array.__value = [ i + other for i in self.__value]
return array.__value
elif isinstance(other,MyArray):
#如果other 是一个数组,则两个数组对应位置的数相加
if (len(self.__value) == len(other.__value)):
array = MyArray()
array.__value = [i+j for i,j in zip(self.__value,other.__value)]
return array.__value
else:
print('The size must be equal!')
else:
print('Please input a array or a num!')


#重载运算符 / 浮点数除法,返回浮点数
def __truediv__(self,other):
if self.___isNumber(other):
if other == 0:
print("Zero cant be this number!")
return
array = MyArray()
array.__value = [i / other for i in self.__value]
return array.__value
else:
print("It is must be a number except zero!")

#重载运算符 // 整数除法,返回不大于结果的最大的一个整数
def __floordiv__(self,other):
if isinstance(other,int):
if other == 0:
print("Zero cant be this number!")
return
array = MyArray()
array.__value = [i // other for i in self.__value]
return array.__value
else:
print("Tt is must be a number except zero!")

#重载运算符% 取余数
def __mod__(self,other):
if isinstance(other,int):
if other == 0:
print("Zero cant be this number!")
return
array = MyArray()
array.__value = [i % other for i in self.__value]
return array.__value
else:
print("Tt is must be a number!")

#根据数组index查看元素
def __getitem__(self,index):
arrayLength = len(self.__value)
if isinstance(index,int) and (0 <= index <= arrayLength):
return self.__value[index]
else:
print("Index must be a Inteager which is less than", arrayLength-1)

#查看元素是否在该列表
def __contains__(self,other):
if other in self.__value:
return True
return False

#数组比较
def __lt__(self,other):
if not isinstance(other,MyArray):
print("It is must be the type of MyArray")
return False
if self.__value < other.__value:
return True
return False



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