如何在 python 中讀取 JSON object？

Question

我目前正在處理 Python Pygame 項目，我必須使用 JSON 文件。 我試圖讀取 JSON 文件，但我無法讓它打印我想知道的內容。

這是 JSON 文件

  "pokemons": {
    "5": {
      "name": "Snivy",
      "type": "Grass",
      "hp": 45,
      "attack": 45,
      "defence": 55,
      "speed": 63,
      "moves": [
        "Tackle",
        "Leer",
        "null",
        "null"
      ],
      "level": 4,
      "xp": 54
    },
    "2": {
      "name": "Tepig",
      "type": "Fire",
      "hp": 65,
      "attack": 63,
      "defence": 45,
      "speed": 45,
      "moves": [
        "Tackle",
        "Tail Whip",
        "Ember",
        "null"
      ],
      "level": 7,
      "xp": 11
    }
  }
} 

我試圖從不同的“ID”又名“5”和“2”中讀取“名稱”、“類型”等，但我只能讓它從“口袋妖怪”數組中打印“5”和“2”

with open("data.json", "r") as f:
    data = json.load(f)
    for i in data["pokemons"]:
        print(i)

Answer 1

You've titled this json read from array inside of array python , but you don't have JSON arrays (translated into Python lists) here - you have JSON objects (translated into Python dicts).

for i in data["pokemons"]:

data["pokemons"]是一個字典，所以像這樣迭代它會給你鍵 - "5"和“2”`。 您可以使用它們來索引數據：

data["pokemons"][i]

這為您提供了代表單個口袋妖怪的對象（字典）之一，您可以從中訪問名稱：

data["pokemons"][i]["name"]

更好的是，您可以直接遍歷data["pokemons"]的值，而不是鍵：

for pokemon in data["pokemons"].values():
    name = pokemon["name"]

或者您可以使用.items()一次獲得兩者，例如：

for pid, pokemon in data["pokemons"].items():
    # use string formatting to display the pid and matching name together.
    print(f"pokemon number {pid} has name {pokemon['name']}")

Answer 2

我的解決方案

data = '{"pokemons": {"5": {"name": "Snivy","type": "Grass","hp": 45,"attack": 45,"defence": 55,"speed": 63,"moves": ["Tackle","Leer","null","null"],"level": 4,"xp": 54},"2": {"name": "Tepig","type": "Fire","hp": 65,"attack": 63,"defence": 45,"speed": 45,"moves": ["Tackle","Tail Whip","Ember","null"],"level": 7,"xp": 11}}}}'
datadict = json.loads(data)
dataOfId = datadict['pokemons']
for i in dataOfId:
      print(dataOfId[i]["name"])
      print(dataOfId[i]["type"])