diff --git a/src/biz/__init__.py b/src/biz/__init__.py
index 74a6e2e..409978d 100644
--- a/src/biz/__init__.py
+++ b/src/biz/__init__.py
@@ -1,11 +1,13 @@
 import logging
 import time
 from traceback import format_exc
-
+import struct
 import sqlalchemy
 from fastapi_sqlalchemy import db
 from jinja2 import Template
 from pymysql import err
+from pymysql.constants import FIELD_TYPE
+from pymysql.converters import conversions, convert_time
 
 __author__ = 'Woodstock'
 
@@ -13,6 +15,10 @@ logger = logging.getLogger("uvicorn.error")
 
 engine = None
 
+conversions[FIELD_TYPE.BIT] = lambda b: struct.unpack(">Q", (bytes([0x00]) * (8 - len(b)) + b))[0]
+conversions[FIELD_TYPE.TIME] = convert_time
+conversions[FIELD_TYPE.DATETIME] = str
+
 
 class EDatabase(Exception):
     def __init__(self, *args):
@@ -80,7 +86,7 @@ class DB:
     def all(self):
         # 获取查询列表。把ResultProxy和RowProxy类型封装成python的list和dict类型
         if self.version.startswith('1.4'):
-            data = [i._asdict for i in self.result]
+            data = [i._asdict() for i in self.result]
         else:
             data = [dict(zip(i.keys(), i.values())) for i in self.result]
         self.result.close()