Web6 feb. 2024 · class MyNumbers: def __iter__(self): self.a = 1 return self def __next__(self): if self.a <= 20: x = self.a self.a += 1 return x else: raise StopIteration myclass = … Web7 feb. 2024 · 1.代码如图所示 >>> class MyNumbers: def __iter__ (self): self.a = 1 return self def __next__ (self): if self.a <= 20: x = self.a self.a += 1 return x else: raise StopIteration >>> myclass = MyNumbers () >>> myiter = iter (myclass) >>> for x in myiter: print (x) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 2.出现错误:
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Web7 feb. 2024 · Python入门(五) 一、Python3 迭代器与生成器 1.迭代器 迭代是python最强大的功能之一,是访问集合元素的一种方式。迭代器是一个可以记住遍历的位置的对象。 … WebExample Get your own Python Server Create an iterator that returns numbers, starting with 1, and each sequence will increase by one (returning 1,2,3,4,5 etc.): class MyNumbers: def __iter__ (self): self.a = 1 return self def __next__ (self): x = self.a self.a += 1 return x myclass = MyNumbers () myiter = iter (myclass) print(next(myiter)) restaurant in the town of malaga for lunch
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WebYour array has got two rows => myNumbers.length = 2 If you want to know how many elements are in every row, you have to specify which row you want to consider and then … WebmyNumbers[1]; that is equals to [5,6,7] When you type myNumbers.length, you are retrieving the numbers of the rows which compose your array. Your array has got two rows => myNumbers.length = 2 If you want to know how many elements are in every row, you have to specify which row you want to consider and then you have to invoke the length … Web10 nov. 2024 · class MyNumbers: def __iter__ (self): self. a = 1 return self def __next__ (self): if self. a <= 20: x = self. a self. a += 1 return x else: raise StopIteration myclass = … providence and evil peter geach