Python 之 向上取整、向下取整以及四舍五入函数
python 向上取整ceil 向下取整floor 四舍五入round,下面给出源码示例.
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)