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72 lines
1.8 KiB
C#
72 lines
1.8 KiB
C#
namespace DS.Module.Core;
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/// <summary>
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/// Decimal 工具类
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/// </summary>
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public static class DecimalUtil
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{
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/// <summary>
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/// 获得decimal的精度
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public static int Precise(this decimal value)
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{
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var s = value.ToString();
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if (!s.Contains('.'))
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{
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return 0;
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}
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return s.Length - s.IndexOf('.') - 1;
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}
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/// <summary>
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/// 检查金额, 最大值为8位数字
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/// </summary>
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/// <param name="money">金额</param>
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/// <param name="title">标题</param>
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/// <param name="ignoreMax">是否忽略最大值检查 默认为否</param>
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/// <param name="digit">小数位数</param>
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/// <returns></returns>
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public static (bool isSuccess, string errMsg) CheckMoney(this decimal money, string title, bool ignoreMax = false,
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int maxDigit = 8, int digit = 3)
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{
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// 0或者负数检查
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if (money <= 0M)
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{
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return (false, $"{title}不为0或负");
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}
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// 最大值检查
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if (!ignoreMax)
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{
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decimal maximum = NumberConst.MAX_8;
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switch (maxDigit)
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{
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case 5:
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maximum = NumberConst.MAX_5;
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break;
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default:
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maximum = NumberConst.MAX_8;
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break;
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}
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if (money > maximum)
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{
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return (false, $"{title}不能超过最大值");
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}
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}
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// 两位有效小数检查
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int precise = money.Precise();
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if (precise > digit)
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{
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return (false, $"{title}位数超出范围");
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//return (false, $"{title}最多有两位小数");
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}
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return (true, string.Empty);
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}
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} |