# 直接在代码里写死数据，不依赖外部文件
movies = [
    {
        "id": 1,
        "title": "电影A",
        "director": "导演A",
        "year": 2021,
        "rating": 9.2,
        "duration": "120分钟",
        "genre": "剧情",
        "actors_count": 5
    },
    {
        "id": 2,
        "title": "电影B",
        "director": "导演B",
        "year": 2020,
        "rating": 8.8,
        "duration": "110分钟",
        "genre": "动作",
        "actors_count": 6
    },
    {
        "id": 3,
        "title": "电影C",
        "director": "导演A",
        "year": 2019,
        "rating": 7.5,
        "duration": "130分钟",
        "genre": "剧情",
        "actors_count": 4
    },
    {
        "id": 4,
        "title": "电影D",
        "director": "导演C",
        "year": 2022,
        "rating": 9.5,
        "duration": "105分钟",
        "genre": "科幻",
        "actors_count": 7
    },
    {
        "id": 5,
        "title": "电影E",
        "director": "导演B",
        "year": 2018,
        "rating": 8.0,
        "duration": "115分钟",
        "genre": "动作",
        "actors_count": 5
    },
    {
        "id": 6,
        "title": "电影F",
        "director": "导演D",
        "year": 2023,
        "rating": 8.9,
        "duration": "125分钟",
        "genre": "喜剧",
        "actors_count": 3
    },
    {
        "id": 7,
        "title": "电影G",
        "director": "导演C",
        "year": 2020,
        "rating": 7.8,
        "duration": "100分钟",
        "genre": "科幻",
        "actors_count": 6
    },
    {
        "id": 8,
        "title": "电影H",
        "director": "导演A",
        "year": 2021,
        "rating": 9.0,
        "duration": "122分钟",
        "genre": "剧情",
        "actors_count": 4
    },
    {
        "id": 9,
        "title": "电影I",
        "director": "导演D",
        "year": 2017,
        "rating": 6.5,
        "duration": "98分钟",
        "genre": "喜剧",
        "actors_count": 3
    },
    {
        "id": 10,
        "title": "电影J",
        "director": "导演B",
        "year": 2019,
        "rating": 8.3,
        "duration": "118分钟",
        "genre": "悬疑",
        "actors_count": 5
    }
]

# 1. 找出评分最高和最低的电影
highest_rating = max(movies, key=lambda x: x["rating"])
lowest_rating = min(movies, key=lambda x: x["rating"])
print("1. 评分最高和最低的电影：")
print(f"最高：{highest_rating['title']}，评分：{highest_rating['rating']}")
print(f"最低：{lowest_rating['title']}，评分：{lowest_rating['rating']}\n")

# 2. 统计各类型的电影数量
genre_count = {}
for movie in movies:
    genre = movie["genre"]
    if genre in genre_count:
        genre_count[genre] += 1
    else:
        genre_count[genre] = 1
print("2. 各类型电影数量：")
print(genre_count, "\n")

# 3. 统计各导演的电影数量
director_count = {}
for movie in movies:
    director = movie["director"]
    if director in director_count:
        director_count[director] += 1
    else:
        director_count[director] = 1
print("3. 各导演电影数量：")
print(director_count, "\n")

# 4. 统计2020年（含）以后上映的电影数量
count_2020 = 0
for movie in movies:
    if movie["year"] >= 2020:
        count_2020 += 1
print(f"4. 2020年（含）以后上映的电影数量：{count_2020}")