局部变量与全局变量的效率测试
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import math
import time
def test01():
start=time.time()
for i in range(1000000):
math.sqrt(30)
end=time.time()
print("耗时{0}".format((end-start)))
def test02():
b=math.sqrt
Start=time.time()
for i in range(1000000):
b(30)
end=time.time()
print("耗时{0}".format((end-Start)))
test01()
test02()