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39 lines
851 B
39 lines
851 B
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Utils.Datas
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{
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public class NumToStringUtil
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{
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/// <summary>
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/// 小数位最多N位
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/// </summary>
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public static string GetPointAtMost(decimal num, int places = 2)
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{
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var s = GetStandardPoint(num, places);
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if (!s.EndsWith("0"))
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return s;
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int zeroLength = 1;
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for (int i = 1; i < places; i++) {
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if (s.ElementAt(s.Length - zeroLength - 1) != '0')
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break;
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zeroLength++;
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}
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if (zeroLength == places)
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return s.Substring(0, s.Length - zeroLength - 1);
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return s.Substring(0, s.Length - zeroLength);
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}
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/// <summary>
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/// N位小数
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/// </summary>
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public static string GetStandardPoint(decimal num, int places = 2)
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{
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if (places < 1)
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places = 2;
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return num.ToString("F" + places);
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}
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}
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}
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