diff --git a/build.gradle b/build.gradle
index 44553d4..ba085ee 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
 }
 
 group = 'me.skymc'
-version = '5.11'
+version = '5.12'
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
diff --git a/src/main/scala/io/izzel/taboolib/Version.java b/src/main/scala/io/izzel/taboolib/Version.java
index 2e7ff9c..e8f0802 100644
--- a/src/main/scala/io/izzel/taboolib/Version.java
+++ b/src/main/scala/io/izzel/taboolib/Version.java
@@ -56,4 +56,8 @@ public enum Version {
             return vNull;
         }
     }
+
+    public static int getCurrentVersionInt() {
+        return getCurrentVersion().versionInt;
+    }
 }
\ No newline at end of file
diff --git a/src/main/scala/io/izzel/taboolib/util/TMap.java b/src/main/scala/io/izzel/taboolib/util/TMap.java
index 22fcf62..2556b24 100644
--- a/src/main/scala/io/izzel/taboolib/util/TMap.java
+++ b/src/main/scala/io/izzel/taboolib/util/TMap.java
@@ -1,7 +1,11 @@
 package io.izzel.taboolib.util;
 
 import com.google.common.collect.Maps;
+import io.izzel.taboolib.util.item.ItemBuilder;
+import io.izzel.taboolib.util.item.Items;
 import io.izzel.taboolib.util.lite.Numbers;
+import org.bukkit.inventory.ItemFlag;
+import org.bukkit.inventory.ItemStack;
 import org.bukkit.util.NumberConversions;
 
 import java.util.Arrays;
@@ -82,6 +86,24 @@ public class TMap {
         return new String[] {v[0], r.toString().replace("`", "")};
     }
 
+    public static ItemStack parseItem(String source) {
+        TMap map = TMap.parse(source);
+        ItemBuilder builder = new ItemBuilder(Items.asMaterial(map.get("material", "m", "type", "t")))
+                .amount(map.getInt(new String[]{"amount", "a"}, 1))
+                .damage(map.getInt("damage", "data", "d"))
+                .name(map.get("displayname", "display", "name", "n"));
+        if (map.getBoolean("shiny", "glowing", "glow")) {
+            builder.shiny();
+        }
+        if (map.get("lore", "l") != null) {
+            builder.lore(map.get("lore", "l").split("\\n"));
+        }
+        if (map.get("flag", "f") != null) {
+            builder.flags(Arrays.stream(map.get("flag", "f").split("\\n")).map(Items::asItemFlag).filter(Objects::nonNull).toArray(ItemFlag[]::new));
+        }
+        return builder.colored().build();
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
diff --git a/src/main/scala/io/izzel/taboolib/util/item/ItemStacker.java b/src/main/scala/io/izzel/taboolib/util/item/ItemStacker.java
new file mode 100644
index 0000000..678897a
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/ItemStacker.java
@@ -0,0 +1,165 @@
+package io.izzel.taboolib.util.item;
+
+import io.izzel.taboolib.util.ArrayUtil;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.CraftingInventory;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.PlayerInventory;
+
+/**
+ * @Author 坏黑
+ * @Since 2019-02-07 23:53
+ */
+public class ItemStacker {
+
+    /**
+     * 从箱子里移动物品到玩家背包
+     * 如果溢出则丢弃
+     */
+    public static void moveItemFromChest(ItemStack item, Player player) {
+        AddResult result = addItemAndMerge(item, player.getInventory(), new Integer[0]);
+        if (result.countOut > 0) {
+            item.setAmount(result.countOut);
+            if (!addItemAndSplit(item, player.getInventory(), 0, true)) {
+                player.getWorld().dropItem(player.getLocation(), item);
+            }
+        }
+    }
+
+    public static boolean addItemAndSplit(ItemStack item, Inventory inventory, int start) {
+        return addItemAndSplit(item, inventory, start, false);
+    }
+
+    /**
+     * 添加并拆分，但不合并
+     * 返回值为是否添加完成
+     *
+     * desc = 快捷栏逆向添加，用于工作台拟真，会忽略 start 参数
+     */
+    public static boolean addItemAndSplit(ItemStack item, Inventory inventory, int start, boolean desc) {
+        int size = inventory instanceof PlayerInventory || inventory instanceof CraftingInventory ? 36 : inventory.getSize();
+        if (desc) {
+            // 8 ~ 0
+            for (int i = 8; i >= 0; i--) {
+                if (check(item, inventory, i)) {
+                    return true;
+                }
+            }
+        }
+        // 9 ~ 36
+        for (int i = desc ? start + 9 : start; i < size; i++) {
+            if (check(item, inventory, i)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static boolean addItemFromChestToPlayer(ItemStack item, Inventory inventory) {
+        for (int i = 8; i >= 0; i--) {
+            if (Items.isNull(inventory.getItem(i))) {
+                if (item.getAmount() > item.getType().getMaxStackSize()) {
+                    ItemStack itemClone = item.clone();
+                    itemClone.setAmount(item.getType().getMaxStackSize());
+                    inventory.setItem(i, itemClone);
+                    item.setAmount(item.getAmount() - item.getType().getMaxStackSize());
+                } else {
+                    ItemStack itemClone = item.clone();
+                    itemClone.setAmount(item.getAmount());
+                    inventory.setItem(i, itemClone);
+                    item.setAmount(0);
+                    return true;
+                }
+            }
+        }
+        for (int i = 35; i >= 9; i--) {
+            if (Items.isNull(inventory.getItem(i))) {
+                if (item.getAmount() > item.getType().getMaxStackSize()) {
+                    ItemStack itemClone = item.clone();
+                    itemClone.setAmount(item.getType().getMaxStackSize());
+                    inventory.setItem(i, itemClone);
+                    item.setAmount(item.getAmount() - item.getType().getMaxStackSize());
+                } else {
+                    ItemStack itemClone = item.clone();
+                    itemClone.setAmount(item.getAmount());
+                    inventory.setItem(i, itemClone);
+                    item.setAmount(0);
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * 合并物品，不新增
+     */
+    public static AddResult addItemAndMerge(ItemStack item, Inventory inventory, Integer[] ignore) {
+        boolean changed = false;
+        int count = item.getAmount();
+        int size = inventory instanceof PlayerInventory || inventory instanceof CraftingInventory ? 36 : inventory.getSize();
+        for (int i = 0; i < size; i++) {
+            if (ArrayUtil.contains(ignore, i)) {
+                continue;
+            }
+            ItemStack inventoryItem = inventory.getItem(i);
+            if (!item.isSimilar(inventoryItem)) {
+                continue;
+            }
+            while (count > 0 && inventoryItem.getAmount() < item.getType().getMaxStackSize()) {
+                changed = true;
+                inventoryItem.setAmount(inventoryItem.getAmount() + 1);
+                count--;
+            }
+            if (count == 0) {
+                return new AddResult(count, changed);
+            }
+        }
+        return new AddResult(count, changed);
+    }
+
+    private static boolean check(ItemStack item, Inventory inventory, int i) {
+        if (Items.isNull(inventory.getItem(i))) {
+            // 如果物品数量过多
+            if (item.getAmount() > item.getType().getMaxStackSize()) {
+                ItemStack itemClone = item.clone();
+                itemClone.setAmount(item.getType().getMaxStackSize());
+                inventory.setItem(i, itemClone);
+                item.setAmount(item.getAmount() - item.getType().getMaxStackSize());
+            } else {
+                inventory.setItem(i, item.clone());
+                item.setAmount(0);
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static class AddResult {
+
+        private int countOut;
+        private boolean changed;
+
+        public AddResult(int countOut, boolean changed) {
+            this.countOut = countOut;
+            this.changed = changed;
+        }
+
+        public int getCountOut() {
+            return countOut;
+        }
+
+        public boolean isChanged() {
+            return changed;
+        }
+
+        @Override
+        public String toString() {
+            return "AddResult{" +
+                    "countOut=" + countOut +
+                    ", changed=" + changed +
+                    '}';
+        }
+    }
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/BuildTask.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/BuildTask.java
new file mode 100644
index 0000000..b216f64
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/BuildTask.java
@@ -0,0 +1,13 @@
+package io.izzel.taboolib.util.item.inventory;
+
+import org.bukkit.inventory.Inventory;
+
+/**
+ * @Author 坏黑
+ * @Since 2019-05-21 18:14
+ */
+public interface BuildTask {
+
+    void run(Inventory event);
+
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickEvent.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickEvent.java
index d286939..cc15d4f 100644
--- a/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickEvent.java
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickEvent.java
@@ -7,7 +7,9 @@ import org.bukkit.event.Cancellable;
 import org.bukkit.event.Event;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryDragEvent;
+import org.bukkit.event.inventory.InventoryEvent;
 import org.bukkit.event.inventory.InventoryInteractEvent;
+import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 
 import java.util.List;
@@ -28,6 +30,10 @@ public class ClickEvent {
         this.slot = slot;
     }
 
+    public List<ItemStack> getAffectItems() {
+        return clickType == ClickType.CLICK ? Servers.getAffectItemInClickEvent((InventoryClickEvent) event) : Lists.newArrayList();
+    }
+
     public InventoryClickEvent castClick() {
         return (InventoryClickEvent) event;
     }
@@ -52,8 +58,8 @@ public class ClickEvent {
         return (Player) ((InventoryInteractEvent) event).getWhoClicked();
     }
 
-    public List<ItemStack> getAffectItems() {
-        return clickType == ClickType.CLICK ? Servers.getAffectItemInClickEvent((InventoryClickEvent) event) : Lists.newArrayList();
+    public Inventory getInventory() {
+        return ((InventoryEvent) event).getInventory();
     }
 
     public void setCancelled(boolean c) {
@@ -63,4 +69,14 @@ public class ClickEvent {
     public boolean isCancelled() {
         return ((Cancellable) event).isCancelled();
     }
+
+    public ItemStack getCurrentItem() {
+        return clickType == ClickType.CLICK ? castClick().getCurrentItem() : null;
+    }
+
+    public void setCurrentItem(ItemStack item) {
+        if (clickType == ClickType.CLICK) {
+            castClick().setCurrentItem(item);
+        }
+    }
 }
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickListener.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickListener.java
index 65b1aab..529bee5 100644
--- a/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickListener.java
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/ClickListener.java
@@ -13,6 +13,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryCloseEvent;
 import org.bukkit.event.inventory.InventoryDragEvent;
+import org.bukkit.event.inventory.InventoryOpenEvent;
 import org.bukkit.event.player.PlayerDropItemEvent;
 import org.bukkit.event.player.PlayerItemHeldEvent;
 import org.bukkit.event.server.PluginDisableEvent;
@@ -32,6 +33,14 @@ class ClickListener implements Listener {
         Bukkit.getOnlinePlayers().stream().filter(player -> player.getOpenInventory().getTopInventory().getHolder() instanceof MenuHolder && e.getPlugin().equals(((MenuHolder) player.getOpenInventory().getTopInventory().getHolder()).getBuilder().getPlugin())).forEach(HumanEntity::closeInventory);
     }
 
+    @EventHandler
+    public void e(InventoryOpenEvent e) {
+        if (e.getInventory().getHolder() instanceof MenuHolder) {
+            Bukkit.getScheduler().runTask(TabooLib.getPlugin(), () -> ((MenuHolder) e.getInventory().getHolder()).getBuilder().getBuildTask().run(e.getInventory()));
+            Bukkit.getScheduler().runTaskAsynchronously(TabooLib.getPlugin(), () -> ((MenuHolder) e.getInventory().getHolder()).getBuilder().getBuildTaskAsync().run(e.getInventory()));
+        }
+    }
+
     @EventHandler
     public void e(InventoryClickEvent e) {
         if (e.getInventory().getHolder() instanceof MenuHolder) {
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/MenuBuilder.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/MenuBuilder.java
index 240f2a6..9e6cd79 100644
--- a/src/main/scala/io/izzel/taboolib/util/item/inventory/MenuBuilder.java
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/MenuBuilder.java
@@ -5,6 +5,7 @@ import io.izzel.taboolib.TabooLib;
 import io.izzel.taboolib.util.Ref;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
+import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.plugin.Plugin;
@@ -24,6 +25,8 @@ public class MenuBuilder {
     private char[][] items = new char[0][0];
     private ClickTask clickTask;
     private CloseTask closeTask;
+    private BuildTask buildTask;
+    private BuildTask buildTaskAsync;
     private boolean lockHand;
 
     public MenuBuilder(Plugin plugin) {
@@ -43,6 +46,11 @@ public class MenuBuilder {
         return this;
     }
 
+    public MenuBuilder lockHand(boolean value) {
+        this.lockHand = value;
+        return this;
+    }
+
     public MenuBuilder event(ClickTask clickTask) {
         this.clickTask = clickTask;
         return this;
@@ -53,6 +61,16 @@ public class MenuBuilder {
         return this;
     }
 
+    public MenuBuilder build(BuildTask buildTask) {
+        this.buildTask = buildTask;
+        return this;
+    }
+
+    public MenuBuilder buildAsync(BuildTask buildTask) {
+        this.buildTaskAsync = buildTask;
+        return this;
+    }
+
     public MenuBuilder title(String title) {
         this.title = title;
         return this;
@@ -76,6 +94,10 @@ public class MenuBuilder {
         return this;
     }
 
+    public void open(Player player) {
+        player.openInventory(build());
+    }
+
     public Inventory build() {
         Inventory inventory = Bukkit.createInventory(new MenuHolder(this), rows, String.valueOf(title));
         for (int i = 0; i < items.length && i < rows; i++) {
@@ -133,6 +155,14 @@ public class MenuBuilder {
         return closeTask;
     }
 
+    public BuildTask getBuildTask() {
+        return buildTask;
+    }
+
+    public BuildTask getBuildTaskAsync() {
+        return buildTaskAsync;
+    }
+
     public boolean isLockHand() {
         return lockHand;
     }
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/Action.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/Action.java
new file mode 100644
index 0000000..75d8b57
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/Action.java
@@ -0,0 +1,13 @@
+package io.izzel.taboolib.util.item.inventory.stored;
+
+import io.izzel.taboolib.util.item.inventory.ClickEvent;
+import org.bukkit.inventory.ItemStack;
+
+public abstract class Action {
+
+    public abstract ItemStack getCurrent(ClickEvent e);
+
+    public abstract void setCurrent(ClickEvent e, ItemStack item);
+
+    public abstract int getCurrentSlot(ClickEvent e);
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionClick.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionClick.java
new file mode 100644
index 0000000..d2062c6
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionClick.java
@@ -0,0 +1,26 @@
+package io.izzel.taboolib.util.item.inventory.stored;
+
+import io.izzel.taboolib.util.item.inventory.ClickEvent;
+import org.bukkit.inventory.ItemStack;
+
+/**
+ * @Author sky
+ * @Since 2019-12-03 19:17
+ */
+public class ActionClick extends Action{
+
+    @Override
+    public ItemStack getCurrent(ClickEvent e) {
+        return e.getClicker().getItemOnCursor();
+    }
+
+    @Override
+    public void setCurrent(ClickEvent e, ItemStack item) {
+        e.getClicker().setItemOnCursor(item);
+    }
+
+    @Override
+    public int getCurrentSlot(ClickEvent e) {
+        return e.getRawSlot();
+    }
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionKeyboard.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionKeyboard.java
new file mode 100644
index 0000000..0efa6a2
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionKeyboard.java
@@ -0,0 +1,26 @@
+package io.izzel.taboolib.util.item.inventory.stored;
+
+import io.izzel.taboolib.util.item.inventory.ClickEvent;
+import org.bukkit.inventory.ItemStack;
+
+/**
+ * @Author sky
+ * @Since 2019-12-03 19:20
+ */
+public class ActionKeyboard extends Action {
+
+    @Override
+    public ItemStack getCurrent(ClickEvent e) {
+        return e.getClicker().getInventory().getItem(e.castClick().getHotbarButton());
+    }
+
+    @Override
+    public void setCurrent(ClickEvent e, ItemStack item) {
+        e.getClicker().getInventory().setItem(e.castClick().getHotbarButton(), item);
+    }
+
+    @Override
+    public int getCurrentSlot(ClickEvent e) {
+        return e.getRawSlot();
+    }
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionQuickTake.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionQuickTake.java
new file mode 100644
index 0000000..d0d2d98
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/ActionQuickTake.java
@@ -0,0 +1,30 @@
+package io.izzel.taboolib.util.item.inventory.stored;
+
+import io.izzel.taboolib.util.item.ItemStacker;
+import io.izzel.taboolib.util.item.inventory.ClickEvent;
+import org.bukkit.inventory.ItemStack;
+
+/**
+ * @Author sky
+ * @Since 2019-12-03 19:20
+ */
+public class ActionQuickTake extends Action {
+
+    @Override
+    public ItemStack getCurrent(ClickEvent e) {
+        return e.getClicker().getItemOnCursor();
+    }
+
+    @Override
+    public void setCurrent(ClickEvent e, ItemStack item) {
+        if (item != null) {
+            ItemStacker.moveItemFromChest(item, e.getClicker());
+        }
+        e.getClicker().setItemOnCursor(null);
+    }
+
+    @Override
+    public int getCurrentSlot(ClickEvent e) {
+        return e.getRawSlot();
+    }
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/MenuStored.java b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/MenuStored.java
new file mode 100644
index 0000000..1cdc954
--- /dev/null
+++ b/src/main/scala/io/izzel/taboolib/util/item/inventory/stored/MenuStored.java
@@ -0,0 +1,164 @@
+package io.izzel.taboolib.util.item.inventory.stored;
+
+import io.izzel.taboolib.util.item.Items;
+import io.izzel.taboolib.util.item.inventory.ClickEvent;
+import io.izzel.taboolib.util.item.inventory.ClickType;
+import io.izzel.taboolib.util.item.inventory.MenuBuilder;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+
+/**
+ * @Author sky
+ * @Since 2019-12-03 13:24
+ */
+public abstract class MenuStored {
+
+    protected Player player;
+
+    public MenuStored(Player player) {
+        this.player = player;
+    }
+
+    public void open() {
+        MenuBuilder.builder()
+                .lockHand(isLockHand())
+                .title(getTitle())
+                .rows(getRows())
+                .event(this::onClick)
+                .close(this::onClose)
+                .build(this::refresh)
+                .buildAsync(this::refreshAsync)
+                .open(player);
+    }
+
+    public boolean isLockHand() {
+        return false;
+    }
+
+    public String getTitle() {
+        return player.getName();
+    }
+
+    public int getRows() {
+        return 1;
+    }
+
+    public void onClick(ClickEvent e) {
+        if (e.getClickType() == ClickType.CLICK) {
+            // 自动装填
+            if (e.castClick().getClick().isShiftClick() && e.getRawSlot() >= e.getInventory().getSize() && Items.nonNull(e.getCurrentItem())) {
+                e.setCancelled(true);
+                // 获取有效位置
+                int validSlot = getIntoSlot(e.getInventory(), e.getCurrentItem());
+                if (validSlot >= 0) {
+                    // 设置物品
+                    intoItem(e.getInventory(), e.getCurrentItem(), validSlot);
+                    // 移除物品
+                    e.setCurrentItem(null);
+                    onClicked();
+                }
+            }
+            // 手动装填
+            else {
+                Action action;
+                if (e.castClick().getClick().isShiftClick() && e.getRawSlot() >= 0 && e.getRawSlot() < e.getInventory().getSize()) {
+                    action = new ActionQuickTake();
+                } else if (e.castClick().getClick() == org.bukkit.event.inventory.ClickType.NUMBER_KEY) {
+                    action = new ActionKeyboard();
+                } else {
+                    action = new ActionClick();
+                }
+                // 点击有效位置
+                if (isIntoSlot(e.getInventory(), action.getCurrent(e), action.getCurrentSlot(e))) {
+                    e.setCancelled(true);
+                    // 提取动作
+                    if (Items.isNull(action.getCurrent(e)) && existsItem(e.getInventory(), action.getCurrentSlot(e))) {
+                        // 提取物品
+                        action.setCurrent(e, getItem(e.getInventory(), action.getCurrentSlot(e)));
+                        // 删除物品
+                        intoItem(e.getInventory(), null, action.getCurrentSlot(e));
+                        onClicked();
+                    }
+                    // 合法的位置
+                    else if (shouldIntoSlot(e.getInventory(), action.getCurrent(e), action.getCurrentSlot(e))) {
+                        ItemStack current = action.getCurrent(e);
+                        // 提取物品
+                        action.setCurrent(e, getItem(e.getInventory(), action.getCurrentSlot(e)));
+                        // 写入物品
+                        intoItem(e.getInventory(), current, action.getCurrentSlot(e));
+                        onClicked();
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * 当点击动作完成时
+     */
+    public void onClicked() {
+    }
+
+    /**
+     * 当界面关闭时
+     */
+    public void onClose(InventoryCloseEvent e) {
+    }
+
+    /**
+     * 当界面刷新时
+     */
+    public void refresh(Inventory inventory) {
+    }
+
+    /**
+     * 当界面刷新时（异步）
+     */
+    public void refreshAsync(Inventory inventory) {
+    }
+
+    /**
+     * 物品是否可以放入该位置
+     */
+    public boolean shouldIntoSlot(Inventory inventory, ItemStack item, int slot) {
+        return false;
+    }
+
+    /**
+     * 是否为有效的位置
+     */
+    public boolean isIntoSlot(Inventory inventory, ItemStack item, int slot) {
+        return false;
+    }
+
+    /**
+     * 获取界面中有效的位置
+     * 用于 shift 点击时的自动装填
+     */
+    public int getIntoSlot(Inventory inventory, ItemStack item) {
+        return -1;
+    }
+
+    /**
+     * 物品存入界面
+     */
+    public void intoItem(Inventory inventory, ItemStack item, int slot) {
+        inventory.setItem(slot, item);
+    }
+
+    /**
+     * 是否存在物品
+     */
+    public boolean existsItem(Inventory inventory, int slot) {
+        return false;
+    }
+
+    /**
+     * 获取物品
+     */
+    public ItemStack getItem(Inventory inventory, int slot) {
+        return inventory.getItem(slot);
+    }
+}
diff --git a/src/main/scala/io/izzel/taboolib/util/lite/Servers.java b/src/main/scala/io/izzel/taboolib/util/lite/Servers.java
index a24c04f..9e5b49d 100644
--- a/src/main/scala/io/izzel/taboolib/util/lite/Servers.java
+++ b/src/main/scala/io/izzel/taboolib/util/lite/Servers.java
@@ -1,3 +1,4 @@
+
 package io.izzel.taboolib.util.lite;
 
 import com.google.common.collect.Lists;