start with sample

app.py

@@ -8,15 +8,18 @@ ENHANCE_INPUT_DIR = "sr_input"
 ENHANCE_OUTPUT_DIR = "sr_output"
 ENHANCE_IMG_NAMES = [f"img_{i}.jpg" for i in range(1, 30)]
 ENHANCE_CHOICES = ["请选择样例图片或者上传"] + ENHANCE_IMG_NAMES
+ENHANCE_DEFAULT = ENHANCE_IMG_NAMES[0]
 
 SEG_INPUT_DIR = "seg_input"
 SEG_OUTPUT_DIR = "seg_output"
 SEG_IMG_NAMES = [f"img_{i}.png" for i in range(1, 30)]
 SEG_CHOICES = ["请选择样例图片或者上传"] + SEG_IMG_NAMES
+SEG_DEFAULT = SEG_IMG_NAMES[0]
 
 DIAG_INPUT_DIR = "diag_input"
 DIAG_IMG_NAMES = [f"img_{i}.jpg" for i in range(1, 32)]
 DIAG_CHOICES = ["请选择样例图片或者上传"] + DIAG_IMG_NAMES
+DIAG_DEFAULT = DIAG_IMG_NAMES[0]
 
 KVASIR_CLASSES = [
     "正常粘膜 (normal-z-line)",
@@ -252,7 +255,7 @@ with gr.Blocks(title="消化道疾病智能分析系统") as demo:
                     gr.HTML("<div class='big-title'>图像增强模块</div>")
                     enhance_select = gr.Dropdown(
                         choices=ENHANCE_CHOICES,
-                        value="---------------",
+                        value=ENHANCE_DEFAULT,
                         label="请选择样例图片或者上传",
                         filterable=True
                     )
@@ -299,7 +302,7 @@ with gr.Blocks(title="消化道疾病智能分析系统") as demo:
                     gr.HTML("<div class='big-title'>图像分割模块</div>")
                     seg_select = gr.Dropdown(
                         choices=SEG_CHOICES, 
-                        value="---------------", 
+                        value=SEG_DEFAULT, 
                         label="请选择样例图片或者上传", 
                         filterable=True
                     )
@@ -337,7 +340,7 @@ with gr.Blocks(title="消化道疾病智能分析系统") as demo:
                     with gr.Column():
                         diag_select = gr.Dropdown(
                             choices=DIAG_CHOICES, 
-                            value="---------------", 
+                            value=DIAG_DEFAULT, 
                             label="请选择样例图片或者上传", 
                             filterable=True
                         )
@@ -374,4 +377,12 @@ with gr.Blocks(title="消化道疾病智能分析系统") as demo:
                     outputs=[diag_select, diag_input_img, diag_table, diag_result, diag_suggestion]
                 )
 
+    # ====== 页面加载时自动显示默认结果 ======
+    demo.load(fn=show_enhance_input, inputs=gr.State(ENHANCE_DEFAULT), outputs=enhance_input_img)
+    demo.load(fn=enhance_demo, inputs=gr.State(ENHANCE_DEFAULT), outputs=enhance_output_img)
+    demo.load(fn=show_seg_input, inputs=gr.State(SEG_DEFAULT), outputs=seg_input_img)
+    demo.load(fn=segment_demo, inputs=gr.State(SEG_DEFAULT), outputs=seg_output_img)
+    demo.load(fn=show_diag_input, inputs=gr.State(DIAG_DEFAULT), outputs=diag_input_img)
+    demo.load(fn=diagnose_demo, inputs=gr.State(DIAG_DEFAULT), outputs=[diag_table, diag_result, diag_suggestion])
+
 demo.launch()