如果json属性值重复，则比较其另一个number属性，并设置属性biggerDuplicate

import json

def compare_duplicate(json_data):
    # 创建一个字典用于存储属性值和对应的number属性值
    value_dict = {}
    
    for item in json_data:
        value = item['value']
        number = item['number']
        
        # 检查属性值是否已经存在于字典中
        if value in value_dict:
            # 如果属性值已经存在，则比较number属性的值
            if number > value_dict[value]:
                # 如果当前number属性值较大，则更新字典中的值
                value_dict[value] = number
        else:
            # 如果属性值不存在，则将其添加到字典中
            value_dict[value] = number
    
    # 遍历JSON对象，设置biggerDuplicate属性
    for item in json_data:
        value = item['value']
        number = item['number']
        
        if value in value_dict and number == value_dict[value]:
            # 如果属性值存在于字典中，并且number属性值与最大值相同
            item['biggerDuplicate'] = True
        else:
            item['biggerDuplicate'] = False
    
    return json_data

# 示例JSON数据
json_data = [
    {"value": "A", "number": 1},
    {"value": "B", "number": 2},
    {"value": "A", "number": 3},
    {"value": "C", "number": 4},
    {"value": "B", "number": 5}
]

# 调用函数进行比较和设置属性
result = compare_duplicate(json_data)

# 打印结果
print(json.dumps(result, indent=4))

[
    {
        "value": "A",
        "number": 1,
        "biggerDuplicate": false
    },
    {
        "value": "B",
        "number": 2,
        "biggerDuplicate": false
    },
    {
        "value": "A",
        "number": 3,
        "biggerDuplicate": true
    },
    {
        "value": "C",
        "number": 4,
        "biggerDuplicate": false
    },
    {
        "value": "B",
        "number": 5,
        "biggerDuplicate": true
    }
]