# 代码
import time
print (time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())))
#暂停
time.sleep(1)
print (time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())))
# 输出
2019-03-11 12:10:18
2019-03-11 12:10:19