如何查找数字数组中的重复项+计数器中每个数字是如何重复的

def find_duplicates_and_count(nums):
    """
    查找数字数组中的重复项并统计每个数字重复的次数
    :param nums: 数字数组
    :return: 包含重复项及其计数的字典
    """
    count_dict = {}
    for num in nums:
        if num in count_dict:
            count_dict[num] += 1
        else:
            count_dict[num] = 1
    
    duplicates = {num: count for num, count in count_dict.items() if count > 1}
    return duplicates

# 示例用法
nums = [1, 2, 3, 4, 4, 5, 5, 5, 6]
result = find_duplicates_and_count(nums)
print(result)  # 输出: {4: 2, 5: 3}

def find_duplicates_and_count(nums):
    if not nums:
        return {}
    
    count_dict = {}
    for num in nums:
        if not isinstance(num, int):
            raise ValueError("数组中包含非数字元素")
        if num in count_dict:
            count_dict[num] += 1
        else:
            count_dict[num] = 1
    
    duplicates = {num: count for num, count in count_dict.items() if count > 1}
    return duplicates