使用嵌套循环 - for 循环

Question

我有两个关于使用嵌套循环的问题。

1. 我正在迭代 Football_match 以创建一个包含每支球队颜色的新列表。到目前为止，我已经

colors = []

for color in soccer_match:
    colors.append(color['colors'])

colors

这给了我[['蓝色'，'白色'，'红色']，['绿色'，'金色']]。我怎样才能将两个列表合并为一个？我还没有学习列表理解或函数。

2. 如何迭代soccer_match 以创建仅包含每支球队队长的列表？我假设我应该使用嵌套 for 循环来查找 'captain' = True 但不确定如何放置该代码。

这是给定的示例。谢谢你！

soccer_match = [
  { "home_team": True,
    "away_team": False,
    "country": "France",
    "num_passes": 484,
    "passes_completed": 423,
    "fouls_committed": 16,
    "colors": ["blue", "white", "red"],
    "players": [
      {
        "name": "Hugo LLORIS",
        "captain": True,
        "shirt_number": 1,
        "position": "Goalie"
      },
      {
        "name": "Benjamin PAVARD",
        "captain": False,
        "shirt_number": 2,
        "position": "Defender"
      },
      {
        "name": "Raphael VARANE",
        "captain": False,
        "shirt_number": 4,
        "position": "Defender"
      },
      {
        "name": "Samuel UMTITI",
        "captain": False,
        "shirt_number": 5,
        "position": "Defender"
      },
      {
        "name": "Paul POGBA",
        "captain": False,
        "shirt_number": 6,
        "position": "Midfield"
      },
      {
        "name": "Antoine GRIEZMANN",
        "captain": False,
        "shirt_number": 7,
        "position": "Forward"
      },
      {
        "name": "Kylian MBAPPE",
        "captain": False,
        "shirt_number": 10,
        "position": "Forward"
      },
      {
        "name": "Ousmane DEMBELE",
        "captain": False,
        "shirt_number": 11,
        "position": "Forward"
      },
      {
        "name": "Corentin TOLISSO",
        "captain": False,
        "shirt_number": 12,
        "position": "Midfield"
      },
      {
        "name": "Ngolo KANTE",
        "captain": False,
        "shirt_number": 13,
        "position": "Midfield"
      },
      {
        "name": "Lucas HERNANDEZ",
        "captain": False,
        "shirt_number": 21,
        "position": "Defender"
      }
    ],
  },
  { "home_team": False,
    "away_team": True,
    "country": "Australia",
    "num_passes": 390,
    "passes_completed": 332,
    "fouls_committed": 19,
    "colors": ["green", "gold"],
    "players": [
      {
        "name": "Mathew RYAN",
        "captain": False,
        "shirt_number": 1,
        "position": "Goalie"
      },
      {
        "name": "Mark MILLIGAN",
        "captain": False,
        "shirt_number": 5,
        "position": "Defender"
      },
      {
        "name": "Mathew LECKIE",
        "captain": False,
        "shirt_number": 7,
        "position": "Forward"
      },
      {
        "name": "Robbie KRUSE",
        "captain": False,
        "shirt_number": 10,
        "position": "Forward"
      },
      {
        "name": "Andrew NABBOUT",
        "captain": False,
        "shirt_number": 11,
        "position": "Forward"
      },
      {
        "name": "Aaron MOOY",
        "captain": False,
        "shirt_number": 13,
        "position": "Midfield"
      },
      {
        "name": "Mile JEDINAK",
        "captain": True,
        "shirt_number": 15,
        "position": "Midfield"
      },
      {
        "name": "Aziz BEHICH",
        "captain": False,
        "shirt_number": 16,
        "position": "Defender"
      },
      {
        "name": "Joshua RISDON",
        "captain": False,
        "shirt_number": 19,
        "position": "Defender"
      },
      {
        "name": "Trent SAINSBURY",
        "captain": False,
        "shirt_number": 20,
        "position": "Defender"
      },
      {
        "name": "Tom ROGIC",
        "captain": False,
        "shirt_number": 23,
        "position": "Midfield"
      }
    ]
  }
]

Answer 1

colors.append用。。。来代替colors.extend。