从字典列表中删除重复值

def remove_duplicates(dictionary_list):
    unique_dict = {}  # 创建一个空字典，用于存储唯一的键值对
    for item in dictionary_list:
        if item not in unique_dict.values():  # 检查当前键值对是否已存在于新字典中
            unique_dict[item] = dictionary_list[item]  # 将当前键值对添加到新字典中
    return unique_dict

# 示例用法
original_dict_list = [{"name": "John", "age": 25}, {"name": "Alice", "age": 30}, {"name": "John", "age": 25}]
unique_dict_list = remove_duplicates(original_dict_list)
print(unique_dict_list)

[{"name": "John", "age": 25}, {"name": "Alice", "age": 30}]