#encoding:utf-8

import math

#向上取整

print "math.ceil---"

print "math.ceil(2.3) => ", math.ceil(2.3)

print "math.ceil(2.6) => ", math.ceil(2.6)

#向下取整

print "\nmath.floor---"

print "math.floor(2.3) => ", math.floor(2.3)

print "math.floor(2.6) => ", math.floor(2.6)

#四舍五入

print "\nround---"

print "round(2.3) => ", round(2.3)

print "round(2.6) => ", round(2.6)

#这三个的返回结果都是浮点型

print "\n\nNOTE:every result is type of float"

print "math.ceil(2) => ", math.ceil(2)

print "math.floor(2) => ", math.floor(2)

print "round(2) => ", round(2)

 

返回如下：