在导入数据时，将校验数据的扩展名是否合法

func/utils/PublicFunc.py

@@ -177,7 +177,7 @@ class PublicFunc:
         QApplication.processEvents()
 
     @staticmethod
-    def examine_file(path_str, filename):
+    def examine_file(path_str, filename, suffix):
         temp_path = list(
             Path(path_str).glob(f"{filename}*"))
         if len(temp_path) == 0:
@@ -201,6 +201,11 @@ class PublicFunc:
                     info=Constants.INPUT_FAILURE + "\n" +
                          filename + "：" +
                          Constants.FAILURE_REASON["Data_Frequency_Not_In_Filename"])
+            if Path(path).suffix != suffix:
+                return Result().failure(
+                    info=Constants.INPUT_FAILURE + "\n" +
+                         filename + "：" +
+                         Constants.FAILURE_REASON["Suffix_Not_Correct"])
             data = {
                 "path": str(path),
                 "freq": int(freq)