PROSAGA码农传奇-C#/.net-在 C# 中将小数四舍五入到最接近的四分之一

在 C# 中将小数四舍五入到最接近的四分之一

作者: 糖果
发布时间: 2024-04-06 05:32:03 (3月前)

您可以使用此博客中给出的 UltimateRoundingFunction：http : //rajputyh.blogspot.in/2014/09/the-ultimate-rounding-function.html

//amountToRound => input amount
//nearestOf => .25 if round to quater, 0.01 for rounding to 1 cent, 1 for rounding to $1
//fairness => btween 0 to 0.9999999_.
// 0 means floor and 0.99999… means ceiling. But for ceiling, I would recommend, Math.Ceiling
// 0.5 = Standard Rounding function. It will round up the border case. i.e. 1.5 to 2 and not 1.
// 0.4999999… non-standard rounding function. Where border case is rounded down. i.e. 1.5 to 1 and not 2.
// 0.75 means first 75% values will be rounded down, rest 25% value will be rounded up.
decimal UltimateRoundingFunction(decimal amountToRound, decimal nearstOf, decimal fairness)
{
return Math.Floor(amountToRound / nearstOf + fairness) * nearstOf;
}
调用下面的标准四舍五入。即 1.125 将四舍五入为 1.25

UltimateRoundingFunction(amountToRound, 0.25m, 0.5m);
调用下面的四舍五入边界值。即 1.125 将四舍五入为 1.00

UltimateRoundingFunction(amountToRound, 0.25m, 0.4999999999999999m);
UltimateRoundingFunction 不可能实现所谓的“银行家的舍入”，您必须使用 paxdiablo 的答案来获得该支持:)