改进description

app.py

@@ -291,17 +291,21 @@ def regenerate_content(course_content_list):
 
 def app():
     st.title("OmniTutor v0.1.0")
-    description1 = st.markdown('''
-    <font color = grey> An all-round teacher. A teaching assistant who really knows the subject </font>
-    <font color = grey> Anything. Anywhere. All at once. </font>                      
-    ''')
-    divider = st.divider()
-    description2 = st.markdown('''
-    <font color = grey> 👈 Upload learning materials in the sidebar, and touch "submit" button </font>
-    <font color = grey> 🎉 Ready to see what happens.. </font>
-
-    '''
-    )
+    st.markdown("""
+        <style>
+            .footer {
+                position: fixed;
+                bottom: 0;
+                left: 10px;
+                width: auto;
+                background-color: transparent;
+                text-align: right;
+                padding-right: 10px;
+                padding-bottom: 10px;
+            }
+        </style>
+        <div class="footer">Made with ❤️ by Siyuan</div>
+    """, unsafe_allow_html=True)
     with st.sidebar:
         st.image("https://siyuan-harry.oss-cn-beijing.aliyuncs.com/oss://siyuan-harry/20231021212525.png")
         added_files = st.file_uploader('Upload .md and .pdf files, simultaneous mixed upload these types is supported.', type=['.md','.pdf'], accept_multiple_files=True)
@@ -312,25 +316,47 @@ def app():
             language = 'Chinese'
         btn = st.button('submit')
     
+    if "description1" not in st.session_state:
+        st.session_state.description1 = ''
+    if "divider" not in st.session_state:
+        st.session_state.divider = ''
+    if "description2" not in st.session_state:
+        st.session_state.description2 = ''
     if "embeddings_df" not in st.session_state:
-        st.session_state.embeddings_df = 1
+        st.session_state.embeddings_df = ''
     if "faiss_index" not in st.session_state:
-        st.session_state.faiss_index = 1
+        st.session_state.faiss_index = ''
     if "course_outline_list" not in st.session_state:
-        st.session_state.course_outline_list = 1
+        st.session_state.course_outline_list = ''
     if "course_content_list" not in st.session_state:
-        st.session_state.course_content_list = 1
+        st.session_state.course_content_list = ''
     if "openai_model" not in st.session_state:
         st.session_state["openai_model"] = "gpt-3.5-turbo"
         # Initialize chat history
     if "messages" not in st.session_state:
         st.session_state.messages = []
     
+
+    st.session_state.description1 = st.markdown('''
+    :grey[An all-round teacher. A teaching assistant who really knows the subject]
+                               
+    :grey[Anything. Anywhere. All at once. ]
+    ''')
+    st.session_state.divider = st.divider()
+    st.session_state.description2 = st.markdown('''
+    <font color = grey> 👈 Upload learning materials in the sidebar, and touch "submit" button </font>
+                               
+    <font color = grey> 🎉 Ready to see what happens.. </font>
+
+    ''', unsafe_allow_html=True
+    )
+
+
     if btn:
-        description1.empty()
-        divider.empty()
-        description2.empty()
-        
+        st.session_state.description1.empty()
+        st.session_state.divider.empty()
+        st.session_state.description2.empty()
+
         #initialize app
         temp_file_paths = initialize_file(added_files)
         st.session_state.embeddings_df, st.session_state.faiss_index = initialize_vdb(temp_file_paths)
@@ -338,8 +364,6 @@ def app():
         st.session_state.course_content_list = initialize_content(st.session_state.course_outline_list, st.session_state.embeddings_df, st.session_state.faiss_index, language)
 
     col1, col2 = st.columns([0.6,0.4])
-    
-    # 这里还可以设置col1 和 col2 不同时出现 - 需要拆分initialize_app()函数
         
     user_question = st.chat_input("Enter your questions when learning...")