diff --git a/app/src/main/java/com/lsp/view/activity/model/BaseModel.kt b/app/src/main/java/com/lsp/view/activity/model/BaseModel.kt
new file mode 100644
index 0000000..66f0292
--- /dev/null
+++ b/app/src/main/java/com/lsp/view/activity/model/BaseModel.kt
@@ -0,0 +1,59 @@
+package com.lsp.view.activity.model
+
+import android.os.Handler
+import android.os.Message
+import com.lsp.view.bean.Post
+import com.lsp.view.util.CallBackStatus
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+
+open class BaseModel {
+    /**
+     * @param service ArrayList接收边界为Post的泛型，若直接使用Post作为泛型参数，需要强制类型转换。
+     */
+    fun <T : Post> request(service: Call<ArrayList<T>>, safeMode: Boolean, handler: Handler){
+
+        service.enqueue(object : Callback<ArrayList<T>> {
+            override fun onResponse(call: Call<ArrayList<T>>, response: Response<ArrayList<T>>) {
+                val getValue:ArrayList<T>? = response.body()
+
+                if (getValue!=null) {
+                    if (getValue.size==0){
+                        callBack(handler, CallBackStatus.DATAISNULL)
+                        return
+                    }
+                    if (safeMode) {
+                        val iter = getValue.iterator()
+                        while (iter.hasNext()) {
+                            val post = iter.next()
+                            if (post.rating != "s")
+                                iter.remove()
+                        }
+                    }
+                    callBack(handler, CallBackStatus.OK,getValue)
+
+                }
+
+            }
+
+            override fun onFailure(call: Call<ArrayList<T>>, t: Throwable) {
+                callBack(handler, CallBackStatus.NETWORKERROR)
+            }
+
+        })
+    }
+
+    fun <T:Post> callBack(handler: Handler,status: CallBackStatus,value:ArrayList<T>){
+        val msg = Message.obtain()
+        msg.what = status.ordinal
+        msg.obj = value
+        handler.sendMessage(msg)
+    }
+
+    fun callBack(handler: Handler,status: CallBackStatus){
+        val msg = Message.obtain()
+        msg.what = status.ordinal
+        handler.sendMessage(msg)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/lsp/view/activity/model/MainActivityModelImpl.kt b/app/src/main/java/com/lsp/view/activity/model/MainActivityModelImpl.kt
index 81eb710..de5480f 100644
--- a/app/src/main/java/com/lsp/view/activity/model/MainActivityModelImpl.kt
+++ b/app/src/main/java/com/lsp/view/activity/model/MainActivityModelImpl.kt
@@ -1,18 +1,13 @@
 package com.lsp.view.activity.model
 
 import android.os.Handler
-import android.os.Message
 import com.lsp.view.retrofit.PostService
 import com.lsp.view.retrofit.ServiceCreator
-import com.lsp.view.bean.Post
 import com.lsp.view.bean.Post_yand
-import com.lsp.view.util.CallBackStatus
 import retrofit2.Call
-import retrofit2.Callback
-import retrofit2.Response
 import kotlin.collections.ArrayList
 
-class MainActivityModelImpl :MainActivityModel {
+class MainActivityModelImpl :MainActivityModel, BaseModel() {
     private val TAG = this::class.java.simpleName
     override fun requestPostList(handler: Handler, source: String, tage: String?, page: Int,safeMode: Boolean){
         val postService: PostService = ServiceCreator.create(source)
@@ -20,51 +15,4 @@ class MainActivityModelImpl :MainActivityModel {
         request(service,safeMode, handler)
     }
 
-    fun <T:Post> callBack(handler: Handler,status: CallBackStatus,value:ArrayList<T>){
-        val msg = Message.obtain()
-        msg.what = status.ordinal
-        msg.obj = value
-        handler.sendMessage(msg)
-    }
-
-    fun callBack(handler: Handler,status: CallBackStatus){
-        val msg = Message.obtain()
-        msg.what = status.ordinal
-        handler.sendMessage(msg)
-    }
-
-    /**
-     * @param service ArrayList接收边界为Post的泛型，若直接使用Post作为泛型参数，需要强制类型转换。
-     */
-    fun <T : Post> request(service:Call<ArrayList<T>>,safeMode: Boolean,handler: Handler){
-
-        service.enqueue(object : Callback<ArrayList<T>>{
-            override fun onResponse(call: Call<ArrayList<T>>, response: Response<ArrayList<T>>) {
-                val getValue:ArrayList<T>? = response.body()
-
-                if (getValue!=null) {
-                    if (getValue.size==0){
-                        callBack(handler,CallBackStatus.DATAISNULL)
-                        return
-                    }
-                    if (safeMode) {
-                        val iter = getValue.iterator()
-                        while (iter.hasNext()) {
-                            val post = iter.next()
-                            if (post.rating != "s")
-                                iter.remove()
-                        }
-                    }
-                    callBack(handler,CallBackStatus.OK,getValue)
-
-                }
-
-            }
-
-            override fun onFailure(call: Call<ArrayList<T>>, t: Throwable) {
-                callBack(handler,CallBackStatus.NETWORKERROR)
-            }
-
-        })
-    }
 }
\ No newline at end of file