New IO structure, unexpexted error in C code

源代码/StgSharp/Geometries/PlainGeometry/Line.cs

@@ -1,17 +1,12 @@
-using Steamworks;
-using StgSharp;
-using StgSharp.Control;
-using StgSharp.Math;
+using StgSharp.Math;
 using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace StgSharp.Geometries
 {
-    public class Line:IPlainGeometry
+    public class Line : IPlainGeometry
     {
-        internal Point basePoint = default ;
-        internal Point beginPoint = default ;
+        internal Point basePoint = default;
+        internal Point beginPoint = default;
         internal Point endPoint = default;
         internal GetLocationHandler movBegin;
         internal GetLocationHandler movEnd;
@@ -29,11 +24,11 @@ namespace StgSharp.Geometries
         public Line() { }
 
         //计算线起点的方法，通过对线的派生的重写实现功能
-        public virtual vec3d MoveBeginPoint(uint tick) 
+        public virtual vec3d MoveBeginPoint(uint tick)
             => movBegin.Invoke(tick);
 
         //计算线重点的方法，通过对线的派生的重写实现功能
-        public virtual vec3d MoveEndPoint(uint tick) 
+        public virtual vec3d MoveEndPoint(uint tick)
             => movEnd.Invoke(tick);
 
         internal override void OnRender(uint tick)