如何编写一个循环来检查是否存在=== 0？

# 使用while循环来检查是否存在=== 0
def check_zero_exists(numbers):
    exists = False
    index = 0
    while index < len(numbers):
        if numbers[index] == 0:
            exists = True
            break
        index += 1
    return exists

# 使用for循环来检查是否存在=== 0
def check_zero_exists(numbers):
    exists = False
    for num in numbers:
        if num == 0:
            exists = True
            break
    return exists