V1.2 新构架

2026-10-22 09:36:09 +08:00 · 2021-02-20 16:45:44 +08:00
parent c2d95a1833
commit 4d76decf73
343 changed files with 41333 additions and 4 deletions
@@ -0,0 +1,52 @@
+namespace System
+{
+    /// <summary>
+    /// 小数数字转换为整数数字格式
+    /// </summary>
+    public enum NumberToInt32Format
+    {
+        /// <summary>
+        /// 四舍五入
+        /// </summary>
+        RoundAwayFromZero,
+
+        /// <summary>
+        /// 五舍六入
+        /// </summary>
+        Round,
+
+        /// <summary>
+        /// 仅取整数
+        /// </summary>
+        Floor,
+
+        /// <summary>
+        /// 进一法
+        /// </summary>
+        Ceiling,
+    }
+
+    /// <summary>
+    /// Enum 扩展 <see cref="NumberToInt32Format"/>
+    /// </summary>
+    public static partial class NumberToInt32FormatEnumExtensions
+    {
+        public static int ToInt32(this float value, NumberToInt32Format format = NumberToInt32Format.Floor) => format switch
+        {
+            NumberToInt32Format.RoundAwayFromZero => (int)MathF.Round(value, MidpointRounding.AwayFromZero),
+            NumberToInt32Format.Round => (int)MathF.Round(value),
+            NumberToInt32Format.Floor => (int)MathF.Floor(value),
+            NumberToInt32Format.Ceiling => (int)MathF.Ceiling(value),
+            _ => throw new ArgumentOutOfRangeException(nameof(format), format, null),
+        };
+
+        public static int ToInt32(this double value, NumberToInt32Format format = NumberToInt32Format.Floor) => format switch
+        {
+            NumberToInt32Format.RoundAwayFromZero => (int)Math.Round(value, MidpointRounding.AwayFromZero),
+            NumberToInt32Format.Round => (int)Math.Round(value),
+            NumberToInt32Format.Floor => (int)Math.Floor(value),
+            NumberToInt32Format.Ceiling => (int)Math.Ceiling(value),
+            _ => throw new ArgumentOutOfRangeException(nameof(format), format, null),
+        };
+    }
+}