diff --git a/src/main/java/net/momirealms/customcrops/CustomCrops.java b/src/main/java/net/momirealms/customcrops/CustomCrops.java
index 450b176..ebef006 100644
--- a/src/main/java/net/momirealms/customcrops/CustomCrops.java
+++ b/src/main/java/net/momirealms/customcrops/CustomCrops.java
@@ -40,6 +40,7 @@ public final class CustomCrops extends JavaPlugin {
 
     public static JavaPlugin instance;
     public static BukkitAudiences adventure;
+    public static CustomCrops plugin;
 
     private CropTimer cropTimer;
     private CropManager cropManager;
@@ -64,6 +65,8 @@ public final class CustomCrops extends JavaPlugin {
     @Override
     public void onEnable() {
 
+        plugin = this;
+
         instance = this;
         adventure = BukkitAudiences.create(instance);
 
diff --git a/src/main/java/net/momirealms/customcrops/api/CustomCropsAPI.java b/src/main/java/net/momirealms/customcrops/api/CustomCropsAPI.java
new file mode 100644
index 0000000..7e8c16d
--- /dev/null
+++ b/src/main/java/net/momirealms/customcrops/api/CustomCropsAPI.java
@@ -0,0 +1,24 @@
+package net.momirealms.customcrops.api;
+
+import net.momirealms.customcrops.CustomCrops;
+import net.momirealms.customcrops.datamanager.SeasonManager;
+
+public class CustomCropsAPI {
+
+    /**
+     * 获取插件实例
+     * @return 插件实例
+     */
+    public static CustomCrops getPlugin(){
+        return CustomCrops.plugin;
+    }
+
+    /**
+     * 获取指定世界的季节
+     * @param worldName 世界名
+     * @return 那个世界的季节，若不存在则返回null
+     */
+    public static String getSeason(String worldName){
+        return SeasonManager.SEASON.get(worldName);
+    }
+}
diff --git a/src/main/java/net/momirealms/customcrops/commands/Completer.java b/src/main/java/net/momirealms/customcrops/commands/Completer.java
index d25037c..4351300 100644
--- a/src/main/java/net/momirealms/customcrops/commands/Completer.java
+++ b/src/main/java/net/momirealms/customcrops/commands/Completer.java
@@ -24,6 +24,7 @@ import org.bukkit.command.TabCompleter;
 import org.jetbrains.annotations.Nullable;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
@@ -36,27 +37,58 @@ public class Completer implements TabCompleter {
             return null;
         }
         if (args.length == 1) {
-            return Arrays.asList("backup", "forcegrow", "forcesave", "forcewater", "reload", "setseason");
+            List<String> arrayList = new ArrayList<>();
+            for (String cmd : Arrays.asList("backup", "forcegrow", "forcesave", "forcewater", "reload", "setseason")) {
+                if (cmd.startsWith(args[0]))
+                    arrayList.add(cmd);
+            }
+            return arrayList;
         }
         if(args[0].equalsIgnoreCase("setseason") && args.length == 2){
-            return ConfigReader.Config.worldNames;
+            List<String> arrayList = new ArrayList<>();
+            for (String cmd : ConfigReader.Config.worldNames) {
+                if (cmd.startsWith(args[1]))
+                    arrayList.add(cmd);
+            }
+            return arrayList;
         }
         if(args[0].equalsIgnoreCase("forcesave") && args.length == 2){
+            List<String> arrayList = new ArrayList<>();
             if (ConfigReader.Season.enable){
                 if (ConfigReader.Season.seasonChange){
-                    return Arrays.asList("all","crop","pot","sprinkler");
+                    for (String cmd : Arrays.asList("all","crop","pot","sprinkler")) {
+                        if (cmd.startsWith(args[1]))
+                            arrayList.add(cmd);
+                    }
                 }else{
-                    return Arrays.asList("all","crop","pot","season","sprinkler");
+                    for (String cmd : Arrays.asList("all","crop","pot","season","sprinkler")) {
+                        if (cmd.startsWith(args[1]))
+                            arrayList.add(cmd);
+                    }
                 }
             }else {
-                return Arrays.asList("all","crop","pot","sprinkler");
+                for (String cmd : Arrays.asList("all","crop","pot","sprinkler")) {
+                    if (cmd.startsWith(args[1]))
+                        arrayList.add(cmd);
+                }
             }
+            return arrayList;
         }
         if(args[0].equalsIgnoreCase("setseason") && args.length == 3){
-            return Arrays.asList("spring","summer","autumn","winter");
+            List<String> arrayList = new ArrayList<>();
+            for (String cmd : Arrays.asList("spring","summer","autumn","winter")) {
+                if (cmd.startsWith(args[2]))
+                    arrayList.add(cmd);
+            }
+            return arrayList;
         }
         if(args[0].equalsIgnoreCase("forcegrow") || args[0].equalsIgnoreCase("forcewater")){
-            return ConfigReader.Config.worldNames;
+            List<String> arrayList = new ArrayList<>();
+            for (String cmd : ConfigReader.Config.worldNames) {
+                if (cmd.startsWith(args[1]))
+                    arrayList.add(cmd);
+            }
+            return arrayList;
         }
         return null;
     }
diff --git a/src/main/java/net/momirealms/customcrops/commands/Executor.java b/src/main/java/net/momirealms/customcrops/commands/Executor.java
index ac2b629..443425b 100644
--- a/src/main/java/net/momirealms/customcrops/commands/Executor.java
+++ b/src/main/java/net/momirealms/customcrops/commands/Executor.java
@@ -150,6 +150,7 @@ public class Executor implements CommandExecutor {
             case "cleandata" -> {
                 plugin.getCropManager().cleanData();
                 plugin.getSprinklerManager().cleanData();
+                return true;
             }
             case "setseason" -> {
                 if (args.length < 3) {