Python3 时间time模块 Clock 方法

#!/usr/bin/python3
import time

def procedure():
   time.sleep(2.5)

# measure process time
t0 = time.clock()
procedure()
print (time.clock() - t0, "seconds process time")

# measure wall time
t0 = time.time()
procedure()
print (time.time() - t0, "seconds wall time")