Update app.py

app.py

@@ -1,6 +1,21 @@
 import streamlit as st
 from transformers import pipeline
 
+# 定义一个包含模型名称的列表
+models = [
+    "bert-base-uncased",
+    "distilbert-base-uncased",
+    "roberta-base",
+    "gpt2",
+    "ZongqianLi/bert-base-cased-scqa2"  # 你可以在这里添加更多模型
+]
+
+# 使用st.selectbox创建一个下拉选择框，让用户从列表中选择一个模型
+model = st.selectbox("Choose a model:", models)
+
+# 显示用户当前选择的模型
+st.write(f"You selected: {model}")
+
 pipe = pipeline("question-answering", model="ZongqianLi/bert-base-cased-scqa2")
 
 st.write("Here's our first attempt at using data to create a table:")