C#各种小数四舍五入汇总

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/// <summary>        /// 特殊四舍五入,        /// 1.1;  1.2; 1.3; 1.4; 1.5 结果1.5        /// 1.6;  1.7; 1.8; 1.9; 2.0 结果2.0        /// </summary>        /// <param name="f"></param>        /// <returns></returns>        public static double TransmitNum(double f)        {             if ((f - (int)f) <= 0.5 && (f - (int)f > 0))                return (int)f + 0.5;            if ((f - (int)f) > 0.5)                return (int)f + 1.0;            if ((f - (int)f) == 0)                return f;            return f;        } 

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