Clean up code

Source/GrasscutterTools/Forms/FormGachaBannerEditor2.cs

@@ -16,14 +16,13 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  **/
+
 using System;
 using System.Collections.Generic;
 using System.Data;
 using System.Drawing;
 using System.Linq;
-using System.Text;
 using System.Windows.Forms;
-using System.Windows.Forms.DataVisualization.Charting;
 
 using GrasscutterTools.Game;
 using GrasscutterTools.Game.Gacha;
@@ -47,7 +46,6 @@ namespace GrasscutterTools.Forms
             InitBannerPrefab();
             InitCheckedListBoxs();
 
-
             ShowBanner(new GachaBanner2());
         }
 
@@ -57,7 +55,6 @@ namespace GrasscutterTools.Forms
             CmbPrefab.Items.AddRange(GameData.GachaBannerPrefabs.Names);
         }
 
-
         private void LnkWeightHelp_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
         {
             System.Diagnostics.Process.Start("https://github.com/Grasscutters/Grasscutter/pull/639");
@@ -94,7 +91,6 @@ namespace GrasscutterTools.Forms
             ListFallbackItems.Items.Clear();
             ListFallbackItems.Items.AddRange(avatars.Concat(weapons).ToArray());
 
-
             ListUpItems.BeginUpdate();
             var ua5 = ListUpItems.Groups["GroupUpA5"];
             var ua4 = ListUpItems.Groups["GroupUpA4"];
@@ -166,11 +162,11 @@ namespace GrasscutterTools.Forms
                     yield return int.Parse(item.Text);
         }
 
-        #endregion
+        #endregion - 卡池 -
 
         #region - 权重 -
 
-        struct GachaWeight
+        private struct GachaWeight
         {
             public int Count;
             public int Weight;
@@ -201,7 +197,7 @@ namespace GrasscutterTools.Forms
             return JsonConvert.DeserializeObject<int[,]>(weights);
         }
 
-        #endregion
+        #endregion - 权重 -
 
         #region - 序列化 -
 
@@ -248,7 +244,6 @@ namespace GrasscutterTools.Forms
                 return null;
             }
 
-
             var prefabId = GameData.GachaBannerPrefabs.Ids[CmbPrefab.SelectedIndex];
             var banner = new GachaBanner2
             {
@@ -317,7 +312,6 @@ namespace GrasscutterTools.Forms
             }
         }
 
-        #endregion
-
+        #endregion - 序列化 -
     }
 }