diff --git a/src/cn/citycraft/TeleportRandom/TeleportRandom.java b/src/cn/citycraft/TeleportRandom/TeleportRandom.java
index 8a914d2..8938817 100644
--- a/src/cn/citycraft/TeleportRandom/TeleportRandom.java
+++ b/src/cn/citycraft/TeleportRandom/TeleportRandom.java
@@ -2,6 +2,7 @@ package cn.citycraft.TeleportRandom;
 
 import java.util.Random;
 
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
@@ -11,7 +12,7 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
 
-import cn.citycraft.Utils.config.Config;
+import cn.citycraft.config.Config;
 
 public class TeleportRandom extends JavaPlugin implements CommandExecutor {
 	public String servername;
@@ -23,30 +24,37 @@ public class TeleportRandom extends JavaPlugin implements CommandExecutor {
 	}
 
 	@Override
-	public boolean onCommand(CommandSender sender, Command cmd, String string,
-			String[] args) {
-		if (cmd.getName().equalsIgnoreCase("tpr")) {
-			if (args.length != 1)
-				return false;
-			if (args[0].equalsIgnoreCase("reload")) {
-				this.onLoad();
-				sender.sendMessage(servername + pluginname
-						+ getmessage("Message.Reload"));
-				return true;
-			}
-			if (sender instanceof Player) {
-				Player p = (Player) sender;
-				if (!p.hasPermission("tpr.use")) {
-					sender.sendMessage(servername + pluginname
-							+ getmessage("Message.NoPerm"));
-					return true;
-				}
-				RandomTP(args, p);
-				return true;
-			}
-			sender.sendMessage(servername + pluginname + "控制台无法使用此命令!");
+	public boolean onCommand(CommandSender sender, Command cmd, String string, String[] args) {
+		if (args.length == 1 && args[0].equalsIgnoreCase("reload")) {
+			this.onLoad();
+			sender.sendMessage(servername + pluginname + getmessage("Message.Reload"));
 			return true;
 		}
+		if (sender instanceof Player) {
+			Player p = (Player) sender;
+			if (!p.hasPermission("tpr.use")) {
+				sender.sendMessage(servername + pluginname + getmessage("Message.NoPerm"));
+				return true;
+			}
+			try {
+				switch (args.length) {
+				case 0:
+					RandomTP(0, p);
+					break;
+				case 1:
+					RandomTP(Integer.parseInt(args[0]), p);
+					break;
+				case 2:
+					RandomTP(Integer.parseInt(args[0]), Bukkit.getWorld(args[1]), p);
+					break;
+				}
+			} catch (Exception e) {
+				sender.sendMessage("§c非法的参数或不存在的世界!");
+			}
+			return true;
+		} else {
+			sender.sendMessage("§c控制台无法使用此命令!");
+		}
 		return false;
 	}
 
@@ -57,27 +65,24 @@ public class TeleportRandom extends JavaPlugin implements CommandExecutor {
 		pluginname = getmessage("pluginname");
 	}
 
-	public void RandomTP(String[] limit, Player p) {
+	public void RandomTP(int limit, Player p) {
+		RandomTP(limit, p.getWorld(), p);
+	}
+
+	public void RandomTP(int limit, World world, Player p) {
 		Random rr = new Random();
 		int lr = Config.getInstance().getInt("default");
-		if (limit.length != 1) {
-			p.sendMessage(servername + pluginname
-					+ getmessage("Message.default1"));
-			p.sendMessage(servername + pluginname
-					+ getmessage("Message.default2"));
+		if (limit == 0) {
+			p.sendMessage(servername + pluginname + getmessage("Message.default1"));
+			p.sendMessage(servername + pluginname + getmessage("Message.default2"));
 		} else {
-			lr = Integer.parseInt(limit[0]);
+			lr = limit;
 			int lrLimit = Config.getInstance().getInt("Limit");
 			if (lr > lrLimit) {
 				lr = lrLimit;
-				p.sendMessage(servername
-						+ pluginname
-						+ getmessage("Message.Wran").replace("%limit%",
-								lrLimit + ""));
+				p.sendMessage(servername + pluginname + getmessage("Message.Wran").replace("%limit%", lrLimit + ""));
 			}
 		}
-		Location l = p.getLocation();
-		World world = l.getWorld();
 		int x = rr.nextInt(lr);
 		int z = rr.nextInt(lr);
 		int xf = rr.nextInt(x);
@@ -92,14 +97,11 @@ public class TeleportRandom extends JavaPlugin implements CommandExecutor {
 		final Location trl = new Location(world, x, y - 1, z);
 		final Material rbm = trl.getBlock().getType();
 		String blockname = rbm.name();
-		for (String protectblock : Config.getInstance().getStringList(
-				"ProtectBlock")) {
+		for (String protectblock : Config.getInstance().getStringList("ProtectBlock")) {
 			if (protectblock.equalsIgnoreCase(blockname)) {
 				trl.getBlock().setType(Material.GLASS);
-				p.sendMessage(servername + pluginname
-						+ getmessage("Message.Protect"));
-				this.getServer().getScheduler()
-				.runTaskLater(this, new Runnable() {
+				p.sendMessage(servername + pluginname + getmessage("Message.Protect"));
+				this.getServer().getScheduler().runTaskLater(this, new Runnable() {
 					@Override
 					public void run() {
 						trl.getBlock().setType(rbm);
@@ -109,10 +111,7 @@ public class TeleportRandom extends JavaPlugin implements CommandExecutor {
 		}
 		Location nrl = new Location(world, x, y + 3, z);
 		p.teleport(nrl);
-		p.sendMessage(servername
-				+ pluginname
-				+ getmessage("Message.Tip")
-				.replaceAll("%world%", world.getName())
-				.replaceAll("%x%", x + "").replaceAll("%z%", z + ""));
+		p.sendMessage(servername + pluginname
+				+ getmessage("Message.Tip").replaceAll("%world%", world.getName()).replaceAll("%x%", x + "").replaceAll("%z%", z + ""));
 	}
 }
diff --git a/src/cn/citycraft/TeleportRandom/utils/VersionChecker.java b/src/cn/citycraft/TeleportRandom/utils/VersionChecker.java
new file mode 100644
index 0000000..c95cfbe
--- /dev/null
+++ b/src/cn/citycraft/TeleportRandom/utils/VersionChecker.java
@@ -0,0 +1,112 @@
+package cn.citycraft.TeleportRandom.utils;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.plugin.Plugin;
+
+import com.google.common.base.Charsets;
+
+/**
+ * 自动更新类
+ * 
+ * @author 蒋天蓓
+ *         2015年8月14日下午4:01:15
+ */
+public class VersionChecker implements Listener {
+	Plugin plugin;
+	public String checkurl = "https://coding.net/u/502647092/p/%s/git/raw/%s/src/plugin.yml";
+	public String branch = "master";
+
+	/**
+	 * @param plugin
+	 *            - 插件
+	 */
+	public VersionChecker(Plugin plugin) {
+		this.plugin = plugin;
+		plugin.getServer().getPluginManager().registerEvents(this, plugin);
+		this.versioncheck(null);
+	}
+
+	/**
+	 * @param plugin
+	 *            - 插件
+	 * @param branch
+	 *            - 分支名称
+	 */
+	public VersionChecker(Plugin plugin, String branch) {
+		this.plugin = plugin;
+		plugin.getServer().getPluginManager().registerEvents(this, plugin);
+		this.checkurl = branch;
+		this.versioncheck(null);
+	}
+
+	/**
+	 * 获取插件更新链接
+	 * 
+	 * @param pluginName
+	 *            - 插件名称
+	 * @param branch
+	 *            - 插件分支
+	 * @return 更新链接
+	 */
+	public String getCheckUrl(String pluginName, String branch) {
+		return String.format(checkurl, pluginName, branch);
+	}
+
+	@EventHandler
+	public void onPlayerJoin(PlayerJoinEvent e) {
+		if (e.getPlayer().isOp()) {
+			this.versioncheck(e.getPlayer());
+		}
+	}
+
+	/**
+	 * 开始更新
+	 * 
+	 * @param player
+	 *            - 获取更新的玩家(null则默认为控制台)
+	 */
+	public void versioncheck(final Player player) {
+		Bukkit.getScheduler().runTaskAsynchronously(plugin, new Runnable() {
+			@Override
+			public void run() {
+				String readURL = getCheckUrl(plugin.getName(), branch);
+				FileConfiguration config;
+				String currentVersion = plugin.getDescription().getVersion();
+				try {
+					URL url = new URL(readURL);
+					BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream(), Charsets.UTF_8));
+					config = YamlConfiguration.loadConfiguration(br);
+					String newVersion = config.getString("version");
+					br.close();
+					if (!newVersion.equals(currentVersion)) {
+						String[] msg = new String[] {
+								ChatColor.GREEN + plugin.getName() + " 插件最新版本 v" + newVersion,
+								ChatColor.RED + "服务器运行版本: v" + currentVersion,
+								ChatColor.GOLD + "插件更新网站: " + ChatColor.BLUE + plugin.getDescription().getWebsite()
+						};
+						if (player != null) {
+							player.sendMessage(msg);
+						} else {
+							plugin.getServer().getConsoleSender().sendMessage(msg);
+						}
+					}
+				} catch (IOException e) {
+					plugin.getLogger().warning("版本更新检查失败!");
+				}
+			}
+		});
+	}
+
+}
diff --git a/src/cn/citycraft/Utils/config/Config.java b/src/cn/citycraft/config/Config.java
similarity index 97%
rename from src/cn/citycraft/Utils/config/Config.java
rename to src/cn/citycraft/config/Config.java
index 48b17ae..18c866b 100644
--- a/src/cn/citycraft/Utils/config/Config.java
+++ b/src/cn/citycraft/config/Config.java
@@ -1,4 +1,4 @@
-package cn.citycraft.Utils.config;
+package cn.citycraft.config;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/src/cn/citycraft/Utils/config/ConfigLoader.java b/src/cn/citycraft/config/ConfigLoader.java
similarity index 98%
rename from src/cn/citycraft/Utils/config/ConfigLoader.java
rename to src/cn/citycraft/config/ConfigLoader.java
index e53e9eb..21ce458 100644
--- a/src/cn/citycraft/Utils/config/ConfigLoader.java
+++ b/src/cn/citycraft/config/ConfigLoader.java
@@ -1,4 +1,4 @@
-package cn.citycraft.Utils.config;
+package cn.citycraft.config;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/src/cn/citycraft/Utils/config/FileConfig.java b/src/cn/citycraft/config/FileConfig.java
similarity index 98%
rename from src/cn/citycraft/Utils/config/FileConfig.java
rename to src/cn/citycraft/config/FileConfig.java
index 589081f..4261603 100644
--- a/src/cn/citycraft/Utils/config/FileConfig.java
+++ b/src/cn/citycraft/config/FileConfig.java
@@ -1,4 +1,4 @@
-package cn.citycraft.Utils.config;
+package cn.citycraft.config;
 
 import java.io.BufferedReader;
 import java.io.File;
diff --git a/src/plugin.yml b/src/plugin.yml
index 8993f4e..486e3b2 100644
--- a/src/plugin.yml
+++ b/src/plugin.yml
@@ -4,7 +4,7 @@ version: 1.0
 commands:
   tpr:
     description: 随机传送插件命令
-    usage: 使用/tpr [随机传送范围] 进行随机传送!
+    usage: §6使用§a/tpr [随机传送范围] [随机传送世界]§6进行随机传送!
 permissions: 
   tpr.*: 
     description: 允许使用所有命令!