修复:框选会往右上方加一个像素导致的选择错误

src/Editor/SelectBox.ts

@@ -27,7 +27,7 @@ export class SelectBox extends SelectSetBase
     {
         super(view);
         this._SelectBox.setFromPoints([p1, p2]);
-        this._SelectBox.max.add(new Vector2(1, 1));//避免盒子为空
+        // this._SelectBox.max.add(new Vector2(1, 1)); //避免盒子为空  (这个代码导致了框选不精确)
         this._BoxCheck = new BoxCheckIntersect(this._SelectBox);
         this._SelectType = selectType;