以下是使用Python遍历JSON对象获取特定值的示例代码：

import json

# 示例JSON对象
data = '''
{
  "name": "John",
  "age": 30,
  "city": "New York",
  "hobbies": ["reading", "painting", "cooking"],
  "friends": [
    {
      "name": "Tom",
      "age": 28
    },
    {
      "name": "Lisa",
      "age": 32
    }
  ]
}
'''

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

# 遍历JSON对象以获取特定值
def find_value(obj, key):
    if isinstance(obj, dict):
        for k, v in obj.items():
            if k == key:
                print(v)
            elif isinstance(v, (dict, list)):
                find_value(v, key)
    elif isinstance(obj, list):
        for item in obj:
            find_value(item, key)

# 获取特定属性值的示例
find_value(json_data, "name")  # 输出：John, Tom, Lisa
find_value(json_data, "age")   # 输出：30, 28, 32
find_value(json_data, "hobbies")   # 输出：["reading", "painting", "cooking"]

以上示例代码会输出名字、年龄和爱好的值。你可以根据需要修改函数find_value来获取特定的属性值。