将__call元方法作为迭代器

class MyIterator:
    def __init__(self, data):
        self.data = data
        self.index = 0

    def __iter__(self):
        return self

    def __next__(self):
        if self.index >= len(self.data):
            raise StopIteration
        value = self.data[self.index]
        self.index += 1
        return value

    def __call__(self):
        return self.__next__()

# 创建一个可迭代对象
my_iterator = MyIterator([1, 2, 3, 4, 5])

# 使用for循环遍历可迭代对象
for item in my_iterator:
    print(item)

# 使用__call__方法遍历可迭代对象
while True:
    try:
        item = my_iterator()
        print(item)
    except StopIteration:
        break