#encoding:utf-8import math#向上取整 http://www.manongjc.com/article/1335.htmlprint "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.htmlprint "\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.htmlprint "\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.htmlprint "\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：