使用模式提取部分json数据。

{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "state": "NY"
  },
  "orders": [
    {
      "id": 1,
      "product": "iPhone",
      "quantity": 2
    },
    {
      "id": 2,
      "product": "MacBook",
      "quantity": 1
    }
  ]
}

import json

# 假设json_data为上述JSON数据
json_data = '''
{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "state": "NY"
  },
  "orders": [
    {
      "id": 1,
      "product": "iPhone",
      "quantity": 2
    },
    {
      "id": 2,
      "product": "MacBook",
      "quantity": 1
    }
  ]
}
'''

# 解析JSON数据
data = json.loads(json_data)

# 定义提取模式
pattern = "orders"

# 遍历JSON数据并提取数据
extracted_data = []
if pattern in data:
    orders = data[pattern]
    for order in orders:
        extracted_data.append({
            "product": order["product"],
            "quantity": order["quantity"]
        })

# 打印提取的数据
print(extracted_data)