修正examine_file方法中的路径类型检查，并优化后续路径处理逻辑

func/utils/PublicFunc.py

@@ -191,6 +191,8 @@ class PublicFunc:
 
     @staticmethod
     def examine_file(path_str, filename, suffix):
+        if not isinstance(path_str, str):
+            path_str = str(path_str)
         temp_path = [p for p in Path(path_str).glob(f"{filename}*") if p.stem.startswith(filename) and p.suffix == suffix]
 
         if len(temp_path) == 0:
@@ -214,13 +216,13 @@ class PublicFunc:
                     info=Constants.INPUT_FAILURE + "\n" +
                          filename + "：" +
                          Constants.FAILURE_REASON["Data_Frequency_Not_In_Filename"])
-            if Path(path).suffix != suffix:
+            if path.suffix != suffix:
                 return Result().failure(
                     info=Constants.INPUT_FAILURE + "\n" +
                          filename + "：" +
                          Constants.FAILURE_REASON["Suffix_Not_Correct"])
             data = {
-                "path": str(path),
+                "path": path,
                 "freq": int(freq)
             }
         return Result().success(data=data)