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博客园 - DataFlow

word break 在不同浏览器中的表现 系统架构 创造HTTPS的是个神 为Chrome开发插件提高工作效率 Javascript 控制style 小结 svcutil 生成代理类时的问题 xeam Build Definition Extension uninstall 卸载 Wcf客户端配置里Endpoint的Name属性无效 屏蔽电信流氓弹出广告 正则替换中的一个Bug SQL server 性能相关 SQL Express 相关 时间格式 输出一个在没有.Net 环境的机器也可以跑得安装包 再谈性能力 SCOM Configuration NumSamples and Absolute XML中的时间 Dos中常用的命令 反序列化怪现象,数组无父
decimal.Round 的区别
DataFlow · 2012-05-17 · via 博客园 - DataFlow

有什么区别?

decimal.Round(xx, decimalPos, MidpointRounding.ToEven);

VS

decimal.Round(xx, decimalPos, MidpointRounding.AwayFromZero);

AwayFromZero, 就是常用的四舍五入.

ToEven, 就比较特别了,称为就近舍入或四舍六入五成双

e.g.

        22.333        to         22.33
        22.335        to         22.34
        22.325        to         22.32
        22.336        to         22.34
        22.326        to         22.33

后面是5的情况比较特殊,如果前面是奇数,则升上去,反之,则截掉,在金融结算中,经常使用该方法,来平衡双方的盈亏