diff --git a/src/main/java/tracker/Tracker.java b/src/main/java/tracker/Tracker.java
new file mode 100644
index 0000000..e1165b2
--- /dev/null
+++ b/src/main/java/tracker/Tracker.java
@@ -0,0 +1,5 @@
+package tracker;
+
+// public class Tracker implements TrackerInterface {
+    
+// }
diff --git a/src/main/java/tracker/TrackerInterface.java b/src/main/java/tracker/TrackerInterface.java
new file mode 100644
index 0000000..872d9ad
--- /dev/null
+++ b/src/main/java/tracker/TrackerInterface.java
@@ -0,0 +1,19 @@
+package tracker;
+import java.io.File;
+
+import object.TTorent;
+import object.TransRecord;
+public interface TrackerInterface{
+    public boolean AddUpLoad(String userid,int upload);//给用户新增上传量，返回0成功，返回1失败;
+    public boolean ReduceUpLoad(String userid,int upload);//给用户减上传量，返回0成功，返回1失败;
+    public boolean AddDownload(String userid,int download);//给用户增加下载量，返回0成功，返回1失败;
+    public boolean ReduceDownload(String userid,int download);//给用户减少下载量，返回0成功，返回1失败;
+    public boolean AddMagic(String userid,int magic);//给用户增加魔力值，返回0成功，返回1失败;
+    public boolean ReduceMagic(String userid,int magic);//给用户减少魔力值，返回0成功，返回1失败;
+
+    public TTorent ReadTorrent(File torrent);//传入torrent文件，解析后返回TTorent类
+    public int SaveTorrent(TTorent seed,String seedid);//保存seedid对应的ttorent信息
+    public File GetTTorent(String seedid,String userid);//根据种子id获得ttorent信息然后构建Ttorent文件并返回,同时记录用户的下载行为
+
+    public int AddRecord(String seedid,TransRecord rd);//新增一个seedid对应的种子的传输任务记录
+}
\ No newline at end of file