添加时间差计算

Azylee.Utils/Azylee.Core/Azylee.Core.csproj

@@ -62,6 +62,7 @@
     <Compile Include="DataUtils\DateTimeUtils\DateTool.cs" />
     <Compile Include="DataUtils\DateTimeUtils\TimerTool.cs" />
     <Compile Include="DataUtils\DateTimeUtils\TimeStampTool.cs" />
+    <Compile Include="DataUtils\DateTimeUtils\TimeTool.cs" />
     <Compile Include="DataUtils\DateTimeUtils\UnixTimeTool.cs" />
     <Compile Include="DataUtils\DateTimeUtils\WeekDayTool.cs" />
     <Compile Include="DataUtils\EncryptUtils\AesTool.cs" />

Azylee.Utils/Azylee.Core/DataUtils/DateTimeUtils/TimeTool.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Azylee.Core.DataUtils.DateTimeUtils
+{
+    /// <summary>
+    /// 时间计算工具类
+    /// </summary>
+    public static class TimeTool
+    {
+        /// <summary>
+        /// 时间与当前时间差
+        /// </summary>
+        /// <param name="dt"></param>
+        /// <returns></returns>
+        public static double TimeDiffSec(DateTime dt)
+        {
+            return (dt - DateTime.Now).TotalSeconds;
+        }
+    }
+}