python，获取当前日期且以当前日期为名称创建文件名

import time
import os
import sys

path = os.path.abspath(os.path.dirname(sys.argv[0]))

localtime = time.localtime(time.time())#获取当前时间
time = time.strftime(‘%Y%m%d‘,time.localtime(time.time()))#把获取的时间转换成"年月日格式”
print(time) 
b = "我在做测试"

with open(path+‘\\‘+str(time) +‘.txt‘, ‘a‘,encoding=‘utf-8‘) as w:
    w.write(b)
    w.close()