#encoding:utf-8
import math
#向上取整 http://www.manongjc.com/article/1335.html
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 http://www.manongjc.com/article/1336.html
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 http://www.manongjc.com/article/1337.html
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 http://www.manongjc.com/article/1338.html
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)
运行结果：