在Python中实现循环的有效方法

for i in range(5):
    print(i)

i = 0
while i < 5:
    print(i)
    i += 1

numbers = [i for i in range(5)]
print(numbers)

numbers = (i for i in range(5))
print(next(numbers))
print(next(numbers))

class MyIterator:
    def __init__(self, max_value):
        self.max_value = max_value
        self.current_value = 0

    def __iter__(self):
        return self

    def __next__(self):
        if self.current_value < self.max_value:
            value = self.current_value
            self.current_value += 1
            return value
        else:
            raise StopIteration

my_iterator = MyIterator(5)
for i in my_iterator:
    print(i)