import pymysql
db = pymysql.connect('localhost','root','mkfmkf','mrsoft')
cursor = db.cursor()
cursor.execute('SELECT VERSION')
date = cursor.fetchone()
print('Date:%s'%date)
db.close




Python 3.6.6 (v3.6.6:4cf1f54eb7, Jun 27 2018, 03:37:03) [MSC v.1900 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> 
===================== RESTART: D:\Python\数据库练习\chage.py =====================
Traceback (most recent call last):
  File "D:\Python\数据库练习\chage.py", line 2, in <module>
    db = pymysql.connect('localhost','root','mkfmkf','mrsoft')
TypeError: __init__() takes 1 positional argument but 5 were given
>>> 

import random

x = [i for i in range(10)]
value=random.shuffle(x)
print(value)

报的错：

Traceback (most recent call last):
  File "E:/chenxin/yolo/yolov5-3.1/train.py", line 491, in <module>
    log_dir = increment_dir(Path(opt.logdir) / 'exp', opt.name)  # runs/exp1
AttributeError: 'Namespace' object has no attribute 'logdir'

代码部分：