python中迭代器（iterator）的用法

"""
皮蛋编程(https://www.pidancode.com)
创建日期：2022/4/3
功能描述：python中迭代器（iterator）的用法
"""
myTuple = (1, 2, 3, 4)
myIterator = iter(myTuple)
print(next(myIterator))
print(next(myIterator))
print(next(myIterator))
print(next(myIterator))

print(" ")
# ------------------------------------------------------------------------------
# If you have no idea how many items can be safely accesd via the iterator,
# use a try/except block to keep your script from crashing.
myTuple2 = ("one", "two", "three", "four")
myIterator2 = iter(myTuple2)
while 1:
    try:
        print(next(myIterator2))
    except StopIteration:
        print("Exception caught! Iterator must be empty!")
        break
input('\n\nPress Enter to exit...')