从Json抓取条件值，对唯一的值进行分组

[
    {"id": 1, "category": "A", "value": 10},
    {"id": 2, "category": "B", "value": 20},
    {"id": 3, "category": "A", "value": 30},
    {"id": 4, "category": "B", "value": 40},
    {"id": 5, "category": "C", "value": 50}
]

import json
from collections import defaultdict

# 假设json_data是从某处获取的JSON字符串
json_data = '''
[
    {"id": 1, "category": "A", "value": 10},
    {"id": 2, "category": "B", "value": 20},
    {"id": 3, "category": "A", "value": 30},
    {"id": 4, "category": "B", "value": 40},
    {"id": 5, "category": "C", "value": 50}
]
'''

# 将JSON字符串解析为Python对象
data = json.loads(json_data)

# 使用defaultdict来分组数据
grouped_data = defaultdict(list)

for item in data:
    grouped_data[item['category']].append(item)

# 打印分组结果
for category, items in grouped_data.items():
    print(f"Category: {category}")
    for item in items:
        print(f"  {item}")