# 获取程序运行时间 # 方法一 import time start = time.time() time.sleep(3) end = time.time() print(end - start) # 3.0000083446502686 # 方法二 from datetime import datetime import time start = datetime.now() time.sleep(3) end = datetime.now() print(end - start) # 0:00:03.000983 # 方法三 import timeit import time start = timeit.default_timer() time.sleep(3) end = timeit.default_timer() print(end - start) # 3.000896377