fix zhifubao date

@@ -68,7 +68,7 @@ class BSWorkbook(Workbook):
         header_col = header_dict.get(header_value)
         header_col = header_dict.get(header_value)
         if header_col is None:
         if header_col is None:
             for pattern in consts.PATTERN_LIST:
             for pattern in consts.PATTERN_LIST:
-                if re.search(pattern, header_value):
+                if re.search(pattern, header_value) and len(header_value) - len(pattern) <= 5:
                     header_col = header_dict.get(pattern)
                     header_col = header_dict.get(pattern)
                     break
                     break
         return header_col
         return header_col