如何从这个json代码中只获取值？

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

import json

# JSON代码
json_code = '{"name": "John", "age": 30, "city": "New York"}'

# 解析JSON代码
data = json.loads(json_code)

# 获取值
name = data["name"]
age = data["age"]
city = data["city"]

# 打印值
print("Name:", name)
print("Age:", age)
print("City:", city)

Name: John
Age: 30
City: New York

street = data["address"]["street"]
zipcode = data["address"]["zipcode"]