diff --git a/zhifang_time.py b/zhifang_time.py
new file mode 100644
index 0000000..3ff0e69
--- /dev/null
+++ b/zhifang_time.py
@@ -0,0 +1,20 @@
+import matplotlib.pyplot as plt
+import json
+duration=[]
+
+with open('movie.json', 'r', encoding='utf-8') as f:
+    data=json.load(f)
+    # print(data)
+    for i in data:
+       duration.append(i["duration"])
+
+plt.figure(figsize=(12,8))
+plt.hist( duration,                     # 数据
+         bins=10,                    # 分成几个柱子
+         color='#3498DB',            # 颜色
+         edgecolor='white')          # 柱子边框颜色
+plt.title('时长分布', fontsize=14)
+plt.xlabel('时长（分钟）', fontsize=13)
+plt.grid(True, linestyle='--', alpha=0.5, axis='y')
+plt.show()
+plt.savefig("q4_3b_hist.png",dpi=150,format='png')
\ No newline at end of file
diff --git a/zhuzhuang.py b/zhuzhuang.py
new file mode 100644
index 0000000..e4de884
--- /dev/null
+++ b/zhuzhuang.py
@@ -0,0 +1,33 @@
+import matplotlib.pyplot as plt
+import json
+
+
+with open('movie.json', 'r', encoding='utf-8') as f:
+    data=json.load(f)
+    # print(data)
+    
+genre_shu={}
+for g in data:
+    ge=g["genre"]
+    if ge in genre_shu:
+        genre_shu[ge]+=1
+    else:
+        genre_shu[ge]=1
+# print("各类型的电影数量",genre_shu)
+
+genre_lei=list(genre_shu.keys())
+genre_liang=list(genre_shu.values())
+
+print(genre_liang)
+
+plt.figure(figsize=(14, 12))
+plt.bar(genre_lei,  genre_liang,        # 类别, 数值
+        width=0.6)                   # 柱子宽度（0~1之间）
+
+# 标题和标签
+plt.title('类型电影数量分布', fontsize=14)
+plt.xlabel('类型名称', fontsize=12)
+plt.ylabel('电影数量', fontsize=12)
+
+plt.show()
+plt.savefig("q4_1_bar.png",dpi=150,format='png')