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app.py

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+import gradio as gr
+import pandas as pd
+import random
+
+def random_excel_viewer(excel_file):
+    df = pd.read_excel(excel_file.name)
+    column_name = df.columns[0]
+    random_entry = random.choice(df[column_name])
+    return f"被随机的幸运观众：\n{random_entry}"
+
+iface = gr.Interface(
+    fn=random_excel_viewer,
+    inputs="file",
+    outputs="text",
+    layout="vertical",
+    title="课堂开心点名器",
+    description="随机抽取一名幸运观众。"
+)
+
+iface.launch()
+
+# 运行主循环
+root.mainloop()