如何验证原始数组元素？

def validate_array_elements(arr):
    for element in arr:
        if isinstance(element, int) and element > 0:
            print(f"Element {element} is a positive integer.")
        else:
            print(f"Element {element} is not a positive integer.")

# 示例数组
my_array = [1, 2, 3, -4, 5, '6', 7.8]

# 验证数组元素
validate_array_elements(my_array)

Element 1 is a positive integer.
Element 2 is a positive integer.
Element 3 is a positive integer.
Element -4 is not a positive integer.
Element 5 is a positive integer.
Element 6 is not a positive integer.
Element 7.8 is not a positive integer.