向字典列表中的正确字典添加计数

def add_counts(dictionary_list):
    counts = {}  # 创建一个空字典用于存储计数结果

    for dictionary in dictionary_list:
        for key in dictionary:
            if key in counts:
                counts[key] += 1  # 键已存在，计数加1
            else:
                counts[key] = 1  # 键不存在，添加到计数字典中并设置值为1

    return counts

# 示例用法
dictionaries = [
    {"apple": 1, "banana": 2, "cherry": 3},
    {"apple": 4, "banana": 5, "durian": 6},
    {"cherry": 7, "elderberry": 8}
]

result = add_counts(dictionaries)
print(result)

{'apple': 2, 'banana': 2, 'cherry': 2, 'durian': 1, 'elderberry': 1}