在导入数据时，将校验数据的扩展名是否合法

func/utils/Constants.py

@@ -94,6 +94,8 @@ class Constants:
         "Path_Not_Exist": "（路径不存在）",
         "File_Not_Exist": "（数据文件不存在）",
         "File_More_Than_One": "（数据文件超过一个）",
+        "Data_Frequency_Not_In_Filename": "（无法找到文件名中的数据频率信息）",
+        "Suffix_Not_Correct": "（文件扩展名不正确）",
         "Frequency_Not_In_Filename": "（数据频率不在文件名中）",
         "Data_Not_Exist": "（数据不存在）",
         "Model_File_Not_Exist": "（模型文件不存在）",

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)