完成q4_1：电影类型柱状图，包含代码、数据和图片

q4/q4_1/movies.json

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+{
+    "data_code": "B-20260705-9162",
+    "movies": [
+        {
+            "id": 1,
+            "title": "放牛班的春天",
+            "director": "Frank Darabont",
+            "year": 2007,
+            "rating": 8.9,
+            "duration": 155,
+            "genre": "悬疑",
+            "actors_count": 5
+        },
+        {
+            "id": 2,
+            "title": "霸王别姬",
+            "director": "陈凯歌",
+            "year": 2018,
+            "rating": 6.6,
+            "duration": 143,
+            "genre": "剧情",
+            "actors_count": 4
+        },
+        {
+            "id": 3,
+            "title": "星际穿越",
+            "director": "Robert Zemeckis",
+            "year": 2018,
+            "rating": 8.4,
+            "duration": 165,
+            "genre": "悬疑",
+            "actors_count": 5
+        },
+        {
+            "id": 4,
+            "title": "肖申克的救赎",
+            "director": "James Cameron",
+            "year": 2008,
+            "rating": 8.6,
+            "duration": 124,
+            "genre": "剧情",
+            "actors_count": 5
+        },
+        {
+            "id": 5,
+            "title": "盗梦空间",
+            "director": "宫崎骏",
+            "year": 1993,
+            "rating": 7.8,
+            "duration": 90,
+            "genre": "爱情",
+            "actors_count": 2
+        },
+        {
+            "id": 6,
+            "title": "泰坦尼克号",
+            "director": "Christopher Nolan",
+            "year": 2001,
+            "rating": 6.7,
+            "duration": 175,
+            "genre": "喜剧",
+            "actors_count": 4
+        },
+        {
+            "id": 7,
+            "title": "忠犬八公的故事",
+            "director": "Lasse Hallström",
+            "year": 2004,
+            "rating": 8.2,
+            "duration": 91,
+            "genre": "动画",
+            "actors_count": 3
+        },
+        {
+            "id": 8,
+            "title": "三傻大闹宝莱坞",
+            "director": "Rajkumar Hirani",
+            "year": 2011,
+            "rating": 6.3,
+            "duration": 175,
+            "genre": "冒险",
+            "actors_count": 3
+        },
+        {
+            "id": 9,
+            "title": "阿甘正传",
+            "director": "Christophe Barratier",
+            "year": 2022,
+            "rating": 7.9,
+            "duration": 107,
+            "genre": "动画",
+            "actors_count": 4
+        },
+        {
+            "id": 10,
+            "title": "千与千寻",
+            "director": "Christopher Nolan",
+            "year": 1993,
+            "rating": 7.2,
+            "duration": 129,
+            "genre": "悬疑",
+            "actors_count": 3
+        }
+    ]
+}

q4/q4_1/q4_1.py

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+import json
+import matplotlib.pyplot as plt
+from collections import Counter
+
+# 设置中文字体（解决中文乱码问题，必加！）
+plt.rcParams['font.sans-serif'] = ['SimHei']  # 黑体
+plt.rcParams['axes.unicode_minus'] = False    # 解决负号显示问题
+
+# 1. 读取movies.json数据
+try:
+    with open('movies.json', 'r', encoding='utf-8') as f:
+        movies_data = json.load(f)
+except FileNotFoundError:
+    print("错误：未找到movies.json文件，请确认文件在当前目录！")
+    exit()
+
+# 2. 统计各类型电影数量（处理多类型分隔，比如"剧情/喜剧"拆分为两个类型）
+genre_list = []
+for movie in movies_data:
+    # 假设movies.json里的类型字段是"genre"，如果是其他名称（如"type"）请修改
+    genres = movie.get('genre', '').split('/')  # 按/拆分多类型
+    genre_list.extend([g.strip() for g in genres if g.strip()])  # 去空格并过滤空值
+
+genre_counter = Counter(genre_list)  # 统计各类型数量
+
+# 3. 提取X轴（类型）和Y轴（数量）数据
+x_labels = list(genre_counter.keys())
+y_values = list(genre_counter.values())
+
+# 4. 绘制柱状图
+plt.figure(figsize=(10, 6))  # 设置画布大小
+plt.bar(x_labels, y_values, color='skyblue')  # 用plt.bar绘制柱状图
+
+# 5. 设置标题和坐标轴（按要求配置）
+plt.title("类型电影数量分布", fontsize=14)  # 标题
+plt.xlabel("电影类型", fontsize=12)         # X轴标签（可选，更清晰）
+plt.ylabel("电影数量", fontsize=12)         # Y轴标签（可选，更清晰）
+plt.xticks(rotation=45, ha='right')         # X轴文字旋转，避免重叠（可选优化）
+plt.tight_layout()  # 自动调整布局，防止文字被截断
+
+# 6. 保存图片（按要求：q4_1_bar.png，dpi=150）
+plt.savefig('q4_1_bar.png', dpi=150)
+plt.close()  # 关闭画布，释放资源
+
+print("柱状图绘制完成！已保存为q4_1_bar.png")