diff --git a/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131MainActivity.java b/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131MainActivity.java
index 94e6ba2d..6478e4d1 100644
--- a/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131MainActivity.java
+++ b/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131MainActivity.java
@@ -1,7 +1,11 @@
 package edu.hzuapps.androidlabs.homeworks.net1414080903131;
 
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
 
@@ -12,6 +16,7 @@ public class Net1414080903131MainActivity extends AppCompatActivity {
 
     Button btLogin;
     Button btRegister;
+    Button btJson;
 
     EditText etUsername;
     EditText etPassword;
@@ -22,16 +27,30 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_net1414080903131_main);
         btLogin= (Button) findViewById(R.id.bt_login);
         btRegister= (Button) findViewById(R.id.bt_register);
+        btJson= (Button) findViewById(R.id.bt_json);
 
         etUsername= (EditText) findViewById(R.id.et_id);
         etPassword= (EditText) findViewById(R.id.et_password);
 
         String username=etUsername.getText().toString();
         String password=etPassword.getText().toString();
+        if (check(username,password)){
+            startActivity(new Intent(Net1414080903131MainActivity.this,Net1414080903131MenuActivity.class));
+        }
 
+        btJson.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                startActivity(new Intent(Net1414080903131MainActivity.this,Net1414080903131ShowJsonActivity.class));
+            }
+        });
 
 
+    }
 
-
+    public boolean check(String name,String password){
+        if (name.equals("linzihong")&&password.equals("123456")){
+            return true;
+        }return false;
     }
 }
diff --git a/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903231/Net1414080903131ShowJsonActivity.java b/AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131ShowJsonActivity.java
similarity index 100%
rename from AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903231/Net1414080903131ShowJsonActivity.java
rename to AndroidLabs/app/src/main/java/edu/hzuapps/androidlabs/homeworks/net1414080903131/Net1414080903131ShowJsonActivity.java
diff --git a/AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main .xml b/AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main.xml
similarity index 84%
rename from AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main .xml
rename to AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main.xml
index 5ebb5020..3d37f77d 100644
--- a/AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main .xml	
+++ b/AndroidLabs/app/src/main/res/layout/activity_net1414080903131_main.xml
@@ -9,7 +9,8 @@
         android:src="@drawable/stu_info"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginBottom="60dp"/>
+        android:layout_marginBottom="10dp"
+        android:id="@+id/imageView" />
 
     <TextView
         android:gravity="center_horizontal"
@@ -20,7 +21,7 @@
         android:textSize="30sp"/>
 
     <LinearLayout
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:paddingLeft="60dp"
         android:paddingRight="60dp"
         android:gravity="center_horizontal"
@@ -83,4 +84,16 @@
         android:layout_marginLeft="50dp"
         android:layout_marginRight="50dp"
         android:id="@+id/bt_register" />
+
+    <Button
+        android:background="@color/colorPrimary"
+        android:textColor="#ffffff"
+        android:text="解析json数据"
+        android:textSize="20sp"
+        android:layout_marginTop="10dp"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="50dp"
+        android:layout_marginRight="50dp"
+        android:id="@+id/bt_json" />
 </LinearLayout>