是否计算字典中项目的出现次数？

def count_items(dictionary):
    counts = {}  # 创建一个空字典用于存储项目的计数

    for item in dictionary:
        if item in counts:
            counts[item] += 1
        else:
            counts[item] = 1

    return counts

# 示例用法
my_dict = {'apple': 3, 'banana': 2, 'orange': 5, 'grape': 3, 'kiwi': 1}
item_counts = count_items(my_dict)
print(item_counts)

{'apple': 3, 'banana': 2, 'orange': 5, 'grape': 3, 'kiwi': 1}