diff --git a/__init__.py b/__init__.py
index c8abbd8..545fd1c 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,3 +1,5 @@
+from .nodes.traverse_folder import TraverseFolder
+from .nodes.unload_all_models import UnloadAllModels
 from .nodes.string_empty_judgement import StringEmptyJudgement
 from .nodes.compute_video_point import VideoStartPointDurationCompute
 from .nodes.cos import COSUpload, COSDownload
@@ -19,6 +21,8 @@ NODE_CLASS_MAPPINGS = {
     "LogToDB": LogToDB,
     "VideoPointCompute": VideoStartPointDurationCompute,
     "StringEmptyJudgement": StringEmptyJudgement,
+    "unloadAllModels": UnloadAllModels,
+    "TraverseFolder": TraverseFolder,
 }
 
 # A dictionary that contains the friendly/humanly readable titles for the nodes
@@ -32,4 +36,6 @@ NODE_DISPLAY_NAME_MAPPINGS = {
     "LogToDB": "状态持久化DB",
     "VideoPointCompute": "视频帧位计算",
     "StringEmptyJudgement": "字符串是否为空",
+    "unloadAllModels": "卸载所有已加载模型",
+    "TraverseFolder": "遍历文件夹"
 }
diff --git a/nodes/compute_video_point.py b/nodes/compute_video_point.py
index d4aa267..0cfb560 100644
--- a/nodes/compute_video_point.py
+++ b/nodes/compute_video_point.py
@@ -11,7 +11,7 @@ def validate_time_format(time_str):
 def get_duration_wave(audio):
     waveform, sample_rate = audio["waveform"], audio["sample_rate"]
     # 防止话说不完
-    return ceil(waveform.shape[2] / sample_rate) + 1
+    return ceil(waveform.shape[2] / sample_rate) + 0.1
 
 
 class VideoStartPointDurationCompute:
diff --git a/nodes/traverse_folder.py b/nodes/traverse_folder.py
new file mode 100644
index 0000000..b2cda48
--- /dev/null
+++ b/nodes/traverse_folder.py
@@ -0,0 +1,39 @@
+import glob
+import os
+
+class AnyType(str):
+  """A special class that is always equal in not equal comparisons. Credit to pythongosssss"""
+
+  def __ne__(self, __value: object) -> bool:
+    return False
+
+
+any = AnyType("*")
+
+class TraverseFolder:
+    @classmethod
+    def INPUT_TYPES(s):
+        return {
+            "required": {
+                "folder": ("STRING", {"default": r"E:\comfy\ComfyUI\input\s3", "required": True}),
+                "subfix": ("STRING", {"default":".mp4", "required": True}),
+                "recursive": ("BOOLEAN", {"default": True, "required": True}),
+                "idx": (
+                    "INT",
+                    {"default": 0, "min": 0, "max": 0xFFFFFF},
+                ),
+            },
+        }
+
+    RETURN_TYPES = ("STRING", )
+    RETURN_NAMES = ("文件路径",)
+
+    FUNCTION = "compute"
+
+    CATEGORY = "不忘科技-自定义节点🚩"
+
+    def compute(self, folder, subfix, recursive, idx):
+        files = glob.glob(os.path.join(folder, r"**\*%s" % subfix), recursive=recursive)
+        if len(files) == 0:
+            raise RuntimeError("No Files Found")
+        return (str(files[idx % len(files)]),)
\ No newline at end of file
diff --git a/nodes/unload_all_models.py b/nodes/unload_all_models.py
new file mode 100644
index 0000000..b70ba7c
--- /dev/null
+++ b/nodes/unload_all_models.py
@@ -0,0 +1,32 @@
+import comfy.model_management
+
+class AnyType(str):
+  """A special class that is always equal in not equal comparisons. Credit to pythongosssss"""
+
+  def __ne__(self, __value: object) -> bool:
+    return False
+
+
+any = AnyType("*")
+
+class UnloadAllModels:
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "any":(any,{"forceInput": True})
+            },
+            "optional": {},
+        }
+
+    RETURN_TYPES = ()
+    FUNCTION = "unload_models"
+    CATEGORY = "不忘科技-自定义节点🚩"
+    OUTPUT_NODE = True
+
+    def unload_models(self,any=None):
+        # 卸载所有已加载的模型
+        comfy.model_management.soft_empty_cache()
+        comfy.model_management.unload_all_models()
+        comfy.model_management.soft_empty_cache()
+        return ()
\ No newline at end of file