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常用工具集/Utility/CZGL.SystemInfo/SizeInfo.cs

@@ -0,0 +1,61 @@
+using System;
+
+namespace CZGL.SystemInfo
+{
+    /// <summary>
+    /// 大小信息
+    /// </summary>
+    public struct SizeInfo
+    {
+        /// <summary>
+        /// Byte 长度
+        /// </summary>
+        public long ByteLength { get; private set; }
+
+        /// <summary>
+        /// 大小
+        /// </summary>
+        public decimal Size { get; set; }
+
+        /// <summary>
+        /// 单位
+        /// </summary>
+        public UnitType SizeType { get; set; }
+
+
+        /// <summary>
+        /// 将字节单位转换为合适的单位
+        /// </summary>
+        /// <param name="byteLength">字节长度</param>
+        /// <returns></returns>
+        public static SizeInfo Get(long byteLength)
+        {
+            UnitType unit = 0;
+            decimal number = byteLength;
+            if (byteLength < 1000)
+            {
+                return new SizeInfo()
+                {
+                    ByteLength = byteLength,
+                    Size = byteLength,
+                    SizeType = UnitType.B
+                };
+            }
+            // 避免出现 1023B 这种情况；这样 1023B 会显示 0.99KB
+            while (Math.Round(number / 1000) >= 1)
+            {
+                number = number / 1024;
+                unit++;
+            }
+
+            return new SizeInfo
+            {
+                Size = Math.Round(number, 2),
+                SizeType = unit,
+                ByteLength = byteLength
+            };
+
+            throw new Exception();
+        }
+    }
+}