对于数据的取整是经常需要考虑的 现在总结如下 #include<iostream> #include<cmath> using namespace std; int main() { double a=1.5; cout<<ceil(a)<<endl; //向上取整 cout<<floor(a)<<endl; //向下取整 cout<<round(a)<<endl; //四舍五入 //不使用函数 cout<

/// <summary> /// 实现数据的四舍五入法 /// </summary> /// <param name="v">要进行处理的数据</param> /// <param name="x">保留的小数位数</param> /// <returns>四舍五入后的结果</returns> public decimal Round(decimal v, int x)

  js 向上取整.向下取整.四舍五入 CreateTime--2018年4月14日11:31:21 Author:Marydon // 1.只保留整数部分(丢弃小数部分) parseInt(5.1234); // 2.向下取整(<= 该数值的最大整数)和parseInt()一样 Math.floor(5.1234);// 5 // 3.向上取整(有小数,整数就+1) Math.ceil(5.1234); // 4.四舍五入(小数部分) Math.round(5.1234); Math.roun

用oracle sql对数字进行操作: 取上取整.向下取整.保留N位小数.四舍五入.数字格式化 取整(向下取整): select floor(5.534) from dual; select trunc(5.534) from dual; 上面两种用法都可以对数字5.534向下取整,结果为5. 如果要向上取整 ,得到结果为6,则应该用ceil select ceil(5.534) from dual; 四舍五入: SELECT round(5.534) FROM dual; ) FROM dua

 / % 四舍五入 向上取整ceil 向下取整floor #include <math.h> double floor(double x); float floorf(float x); long double floorl(long double x); double floor(double x); double ceil(double x); 使用floor函数.floor(x)返回的是小于或等于x的最大整数.如:     floor(10.5) == 10    floor(-10.5

用oracle sql对数字进行操作: 取上取整.向下取整.保留N位小数.四舍五入.数字格式化 取整(向下取整): select floor(5.534) from dual; select trunc(5.534) from dual; 上面两种用法都可以对数字5.534向下取整,结果为5. 如果要向上取整 ,得到结果为6,则应该用ceil select ceil(5.534) from dual; 四舍五入: SELECT round(5.534) FROM dual; ) FROM dua

[四舍五入取整截取] select round(54.56,0) [向下取整截取] SELECT FLOOR(54.56) [向上取整截取]  SELECT   CEILING(13.15) --MSSQL取整函数的使用 --两个整数相除将截断小数部分 select 3/4,4/3,5/3 --结果 0,1,1  --返回大于或等于所给数字表达式的最小整数 SELECT CEILING(123.55), CEILING(123.45),CEILING(-123.45), CEILING(0.0)

sql server ==================================================== [四舍五入取整截取] select round(54.56,0) ==================================================== [向下取整截取] SELECT FLOOR(54.56) ==================================================== [向上取整截取] SELECT CE

#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/articl

==================================================== [四舍五入取整截取] select round(54.56,0) ==================================================== [向下取整截取] SELECT FLOOR(54.56) ==================================================== [向上取整截取]  SELECT   CEILING(13

http://blog.csdn.net/dxnn520/article/details/8454132 ==================================================== [四舍五入取整截取] select round(54.56,0) ==================================================== [向下取整截取] SELECT FLOOR(54.56) =============================