Add parameter support for Maximum length, Top P and Temperature in web demo

web_demo.py

@@ -9,10 +9,11 @@ MAX_TURNS = 20
 MAX_BOXES = MAX_TURNS * 2
 
 
-def predict(input, history=None):
+def predict(input, max_length, top_p, temperature, history=None):
     if history is None:
         history = []
-    response, history = model.chat(tokenizer, input, history)
+    response, history = model.chat(tokenizer, input, history, max_length=max_length, top_p=top_p,
+                                   temperature=temperature)
     updates = []
     for query, response in history:
         updates.append(gr.update(visible=True, value="用户：" + query))
@@ -33,8 +34,12 @@ with gr.Blocks() as demo:
 
     with gr.Row():
         with gr.Column(scale=4):
-            txt = gr.Textbox(show_label=False, placeholder="Enter text and press enter").style(container=False)
+            txt = gr.Textbox(show_label=False, placeholder="Enter text and press enter", lines=11).style(
+                container=False)
         with gr.Column(scale=1):
+            max_length = gr.Slider(0, 4096, value=2048, step=1.0, label="Maximum length", interactive=True)
+            top_p = gr.Slider(0, 1, value=0.7, step=0.01, label="Top P", interactive=True)
+            temperature = gr.Slider(0, 1, value=0.95, step=0.01, label="Temperature", interactive=True)
             button = gr.Button("Generate")
-    button.click(predict, [txt, state], [state] + text_boxes)
+    button.click(predict, [txt, max_length, top_p, temperature, state], [state] + text_boxes)
 demo.queue().launch(share=True)