save code

change3/service3.py

@@ -36,6 +36,7 @@ NODE_MODEL = "11"   # 模特
 NODE_SHIRT = "10"   # 上衣
 NODE_PANTS = "4"    # 裤子
 NODE_OUTPUT = "33"  # 输出
+NODE_PROMPT = "31"  # 文本提示（PrimitiveStringMultiline）
 
 app = FastAPI(title="ComfyUI 换装服务")
 
@@ -73,6 +74,7 @@ class TryOnRequest(BaseModel):
     model_image: str   # base64 模特图片
     shirt_image: str   # base64 上衣图片
     pants_image: str   # base64 裤子图片
+    change_desc: str = ""  # 换装/编辑描述，可空；非空时替换节点 31 的 inputs
 
 
 class TryOnResponse(BaseModel):
@@ -146,6 +148,10 @@ async def try_on(req: TryOnRequest):
     # 加载工作流模板
     workflow = json.loads(WORKFLOW_PATH.read_text(encoding="utf-8"))
 
+    desc = (req.change_desc or "").strip()
+    if desc:
+        workflow[NODE_PROMPT]["inputs"] = {"value": desc}
+
     async with httpx.AsyncClient(timeout=60.0) as client:
         # 解码三张图片
         try: