mysql_db: 代码格式化调整

Signed-off-by: binren <zhangbr@elab-plus.com>

mysql_db.py

@@ -45,7 +45,8 @@ class MysqlDB:
         try:
             self.cursor.execute(sql)
             self.con.commit()
-        except:
+        except Exception as e:
+            print(str(e))
             self.con.rollback()
 
     def add_some(self, sql, data):
@@ -60,7 +61,8 @@ class MysqlDB:
         try:
             self.cursor.execute(sql, data)
             self.con.commit()
-        except:
+        except Exception as e:
+            print(str(e))
             self.con.rollback()
 
     def truncate(self, table_name):