diff --git a/Soft1606070302235/AndroidManifest.xml b/Soft1606070302235/AndroidManifest.xml
new file mode 100644
index 000000000..7865b92ba
--- /dev/null
+++ b/Soft1606070302235/AndroidManifest.xml
@@ -0,0 +1,31 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Soft1606070302235/Soft1606070302235Activity.java b/Soft1606070302235/Soft1606070302235Activity.java
new file mode 100644
index 000000000..ef4914d13
--- /dev/null
+++ b/Soft1606070302235/Soft1606070302235Activity.java
@@ -0,0 +1,5 @@
+package edu.hzuapps.androidlabs.soft1606070302235;
+
+public class Soft1606070302235Activity{
+
+}
\ No newline at end of file
diff --git a/Soft1606070302235/iBook.apk b/Soft1606070302235/iBook.apk
new file mode 100644
index 000000000..b1672a44d
Binary files /dev/null and b/Soft1606070302235/iBook.apk differ
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/SecondActivity.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/SecondActivity.java
new file mode 100644
index 000000000..763cc5769
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/SecondActivity.java
@@ -0,0 +1,151 @@
+package edu.hzuapps.androidlabs.soft1606070302235;
+
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+
+import com.example.beans.Cuns;
+import com.example.luoji.MyDataBase;
+import com.example.luoji.MyOpenHelper;
+
+import android.os.Bundle;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+
+/*
+ *用来编辑日记
+ *主要包括一个方法，isSave()用来保存数据;
+ */
+public class SecondActivity extends Activity {
+
+ EditText ed1,ed2;
+ Button bt1;
+ MyDataBase myDatabase;
+ Cuns cun;
+ int ids;
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_second);
+ ed1=(EditText) findViewById(R.id.editText1);
+ ed2=(EditText) findViewById(R.id.editText2);
+ bt1=(Button) findViewById(R.id.button1);
+ myDatabase=new MyDataBase(this);
+
+ Intent intent=this.getIntent();
+ ids=intent.getIntExtra("ids", 0);
+ //默认为0，不为0,则为修改数据时跳转过来的
+ if(ids!=0){
+ cun=myDatabase.getTiandCon(ids);
+ ed1.setText(cun.getTitle());
+ ed2.setText(cun.getContent());
+ }
+ //保存按钮的点击事件，他和返回按钮是一样的功能，所以都调用isSave()方法；
+ bt1.setOnClickListener(new OnClickListener() {
+
+ @Override
+ public void onClick(View v) {
+ // TODO Auto-generated method stub
+ isSave();
+ }
+ });
+ }
+ /*
+ * 返回按钮调用的方法。
+ * @see android.app.Activity#onBackPressed()
+ */
+ @Override
+ public void onBackPressed() {
+ // TODO Auto-generated method stub
+ //super.onBackPressed();
+ SimpleDateFormat formatter = new SimpleDateFormat ("yyyy.MM.dd HH:mm:ss");
+ Date curDate = new Date(System.currentTimeMillis());//获取当前时间
+ String times = formatter.format(curDate);
+ String title=ed1.getText().toString();
+ String content=ed2.getText().toString();
+ //是要修改数据
+ if(ids!=0){
+ cun=new Cuns(title,ids, content, times);
+ myDatabase.toUpdate(cun);
+ Intent intent=new Intent(SecondActivity.this,Soft1606070302235Activity.class);
+ startActivity(intent);
+ SecondActivity.this.finish();
+ }
+ //新建日记
+ else{
+ if(title.equals("")&&content.equals("")){
+ Intent intent=new Intent(SecondActivity.this,Soft1606070302235Activity.class);
+ startActivity(intent);
+ SecondActivity.this.finish();
+ }
+ else{
+ cun=new Cuns(title,content,times);
+ myDatabase.toInsert(cun);
+ Intent intent=new Intent(SecondActivity.this,Soft1606070302235Activity.class);
+ startActivity(intent);
+ SecondActivity.this.finish();
+ }
+
+ }
+ }
+ private void isSave(){
+ SimpleDateFormat formatter = new SimpleDateFormat ("yyyy.MM.dd HH:mm:ss");
+ Date curDate = new Date(System.currentTimeMillis());//获取当前时间
+ String times = formatter.format(curDate);
+ String title=ed1.getText().toString();
+ String content=ed2.getText().toString();
+ //是要修改数据
+ if(ids!=0){
+ cun=new Cuns(title,ids, content, times);
+ myDatabase.toUpdate(cun);
+ Intent intent=new Intent(SecondActivity.this,Soft1606070302235Activity.class);
+ startActivity(intent);
+ SecondActivity.this.finish();
+ }
+ //新建日记
+ else{
+ cun=new Cuns(title,content,times);
+ myDatabase.toInsert(cun);
+ Intent intent=new Intent(SecondActivity.this,Soft1606070302235Activity.class);
+ startActivity(intent);
+ SecondActivity.this.finish();
+ }
+ }
+
+
+ @Override
+ public boolean onCreateOptionsMenu(Menu menu) {
+ // Inflate the menu; this adds items to the action bar if it is present.
+ getMenuInflater().inflate(R.menu.second_activity, menu);
+ return true;
+ }
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ // TODO Auto-generated method stub
+ switch (item.getItemId()) {
+ case R.id.action_settings:
+ Intent intent=new Intent(Intent.ACTION_SEND);
+ intent.setType("text/plain");
+ intent.putExtra(Intent.EXTRA_TEXT, "标题："+ed1.getText().toString()+" 内容："+ed2.getText().toString());
+ startActivity(intent);
+ break;
+
+ default:
+ break;
+ }
+ return false;
+ }
+
+
+}
+
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/Soft1606070302235Activity.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/Soft1606070302235Activity.java
new file mode 100644
index 000000000..08b5b5573
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/Soft1606070302235/Soft1606070302235Activity.java
@@ -0,0 +1,149 @@
+package edu.hzuapps.androidlabs.soft1606070302235;
+import java.util.ArrayList;
+
+import com.example.beans.Cuns;
+import com.example.luoji.MyAdapter;
+import com.example.luoji.MyDataBase;
+
+import android.os.Bundle;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.View.OnLongClickListener;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.AdapterView.OnItemLongClickListener;
+import android.widget.Button;
+import android.widget.ListView;
+
+/*
+ * 这个类主要包括五个点击事件，分别为
+ * 1，ListView的长按点击事件，用来AlertDialog来判断是否删除数据。
+ * 2，ListView的点击事件，跳转到第二个界面，用来修改数据
+ * 3，新建便签按钮的点击事件，跳转到第二界面，用来新建便签
+ * 4，menu里的退出事件，用来退出程序
+ * 5，menu里的新建事件，用来新建便签
+ */
+public class Soft1606070302235Activity extends Activity {
+
+ Button bt;
+ ListView lv;
+ LayoutInflater inflater;
+ ArrayList array;
+ MyDataBase mdb;
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_soft1606070302235);
+
+ lv=(ListView) findViewById(R.id.listView1);
+ bt=(Button) findViewById(R.id.button1);
+ inflater=getLayoutInflater();
+
+ mdb=new MyDataBase(this);
+ array=mdb.getArray();
+ MyAdapter adapter=new MyAdapter(inflater,array);
+ lv.setAdapter(adapter);
+ /*
+ * 点击listView里面的item,进入到第二个页面，用来修改日记
+ */
+ lv.setOnItemClickListener(new OnItemClickListener() {
+ @Override
+ public void onItemClick(AdapterView parent, View view,
+ int position, long id) {
+ // TODO Auto-generated method stub
+ Intent intent=new Intent(getApplicationContext(),SecondActivity.class);
+ intent.putExtra("ids",array.get(position).getIds() );
+ startActivity(intent);
+ Soft1606070302235Activity.this.finish();
+ }
+ });
+ /*
+ * 长点后来判断是否删除数据
+ */
+ lv.setOnItemLongClickListener(new OnItemLongClickListener() {
+
+ @Override
+ public boolean onItemLongClick(AdapterView parent, View view,
+ final int position, long id) {
+ // TODO Auto-generated method stub
+ //AlertDialog,来判断是否删除日记。
+ new AlertDialog.Builder(Soft1606070302235Activity.this)
+ .setTitle("删除")
+ .setMessage("是否删除笔记")
+ .setNegativeButton("取消", new DialogInterface.OnClickListener() {
+
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+ // TODO Auto-generated method stub
+
+ }
+ })
+ .setPositiveButton("确定", new DialogInterface.OnClickListener() {
+
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+ // TODO Auto-generated method stub
+ mdb.toDelete(array.get(position).getIds());
+ array=mdb.getArray();
+ MyAdapter adapter=new MyAdapter(inflater,array);
+ lv.setAdapter(adapter);
+ }
+ })
+ .create().show();
+ return true;
+ }
+ });
+ /*
+ * 按钮点击事件，用来新建日记
+ */
+ bt.setOnClickListener(new OnClickListener() {
+
+ @Override
+ public void onClick(View v) {
+ // TODO Auto-generated method stub
+ Intent intent=new Intent(getApplicationContext(),SecondActivity.class);
+ startActivity(intent);
+ Soft1606070302235Activity.this.finish();
+ }
+ });
+
+
+
+ }
+
+ @Override
+ public boolean onCreateOptionsMenu(Menu menu) {
+ // Inflate the menu; this adds items to the action bar if it is present.
+ getMenuInflater().inflate(R.menu.main, menu);
+ return true;
+ }
+
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ // TODO Auto-generated method stub
+ switch (item.getItemId()) {
+ case R.id.item1:
+ Intent intent=new Intent(getApplicationContext(),SecondActivity.class);
+ startActivity(intent);
+ this.finish();
+ break;
+ case R.id.item2:
+ this.finish();
+ break;
+ default:
+ break;
+ }
+ return true;
+
+ }
+
+
+}
+
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/beans/Cuns.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/beans/Cuns.java
new file mode 100644
index 000000000..5a8d3c72a
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/beans/Cuns.java
@@ -0,0 +1,43 @@
+package com.example.beans;
+/*
+ * ������ʱ�洢����
+ */
+public class Cuns {
+ private String title;//����
+ private String content;//����
+ private String times;//ʱ��
+ private int ids;//���
+ public Cuns(String ti,int id,String con ,String time){
+ this.ids=id;
+ this.title=ti;
+ this.content=con;
+ this.times=time;
+ }
+ public Cuns(String ti,String con,String time){
+ this.title=ti;
+ this.content=con;
+ this.times=time;
+ }
+ public Cuns(int i,String ti,String time){
+ this.ids=i;
+ this.title=ti;
+ this.times=time;
+ }
+ public Cuns(String ti,String con){
+ this.title=ti;
+ this.content=con;
+ }
+public int getIds() {
+ return ids;
+}
+public String getTitle() {
+ return title;
+}
+public String getContent() {
+ return content;
+}
+public String getTimes() {
+ return times;
+}
+
+}
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyAdapter.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyAdapter.java
new file mode 100644
index 000000000..409d5b953
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyAdapter.java
@@ -0,0 +1,63 @@
+package com.example.luoji;
+
+import java.util.ArrayList;
+
+import com.example.beans.Cuns;
+import com.example.ibook.R;
+
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+/*
+ * �������ListView,��γɹ�����������ҳ����룬ֻҪ����������ֵ��inflater ,������ArrayList<>;
+ */
+public class MyAdapter extends BaseAdapter{
+
+ LayoutInflater inflater;
+ ArrayList array;
+ public MyAdapter(LayoutInflater inf,ArrayList arry){
+ this.inflater=inf;
+ this.array=arry;
+ }
+ @Override
+ public int getCount() {
+ // TODO Auto-generated method stub
+ return array.size();
+ }
+
+ @Override
+ public Object getItem(int position) {
+ // TODO Auto-generated method stub
+ return array.get(position);
+ }
+
+ @Override
+ public long getItemId(int position) {
+ // TODO Auto-generated method stub
+ return position;
+ }
+
+ @Override
+ public View getView(int position, View convertView, ViewGroup parent) {
+ // TODO Auto-generated method stub
+ ViewHolder vh;
+ if(convertView==null){
+ vh=new ViewHolder();
+ convertView=inflater.inflate(R.layout.adapter_listview, null);//ע�������ϵͳ��
+ vh.tv1=(TextView) convertView.findViewById(R.id.textView1);
+ vh.tv2=(TextView) convertView.findViewById(R.id.textView2);
+ convertView.setTag(vh);
+ }
+ vh=(ViewHolder) convertView.getTag();
+ vh.tv1.setText(array.get(position).getTitle());
+ vh.tv2.setText(array.get(position).getTimes());
+ return convertView;
+ }
+ class ViewHolder{
+ TextView tv1,tv2;
+ }
+}
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyDataBase.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyDataBase.java
new file mode 100644
index 000000000..39bd944a8
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyDataBase.java
@@ -0,0 +1,86 @@
+package com.example.luoji;
+
+import java.util.ArrayList;
+
+import com.example.beans.Cuns;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+/*
+ * ר���������ݿ�������࣬�����Ľ����Ƿdz���ȷ�ģ������е����ݿ�������ŵ���������������ֱ�ӵ��þͺ��ˡ�
+ * ���ݵ�����ɾ���ģ��飬��������ʵ��
+ */
+public class MyDataBase {
+ Context context;
+ MyOpenHelper myHelper;
+ SQLiteDatabase myDatabase;
+ /*
+ * �����ʵ����������ͬʱ���������ݿ�
+ */
+ public MyDataBase(Context con){
+ this.context=con;
+ myHelper=new MyOpenHelper(context);
+ }
+ /*
+ * �õ����ListView�õ�array���ݣ������ݿ�����Һ��������һ���������
+ */
+ public ArrayList getArray(){
+ ArrayList array=new ArrayList();
+ ArrayList array1=new ArrayList();
+ myDatabase=myHelper.getWritableDatabase();
+ Cursor cursor=myDatabase.rawQuery("select ids,title,times from mybook" , null);
+ cursor.moveToFirst();
+ while(!cursor.isAfterLast()){
+ int id=cursor.getInt(cursor.getColumnIndex("ids"));
+ String title=cursor.getString(cursor.getColumnIndex("title"));
+ String times=cursor.getString(cursor.getColumnIndex("times"));
+ Cuns cun=new Cuns(id, title, times);
+ array.add(cun);
+ cursor.moveToNext();
+ }
+ myDatabase.close();
+ for (int i = array.size(); i >0; i--) {
+ array1.add(array.get(i-1));
+ }
+ return array1;
+ }
+
+ /*
+ * ���ؿ���Ҫ�ĵ����ݣ��ڶ���������á�
+ */
+ public Cuns getTiandCon(int id){
+ myDatabase=myHelper.getWritableDatabase();
+ Cursor cursor=myDatabase.rawQuery("select title,content from mybook where ids='"+id+"'" , null);
+ cursor.moveToFirst();
+ String title=cursor.getString(cursor.getColumnIndex("title"));
+ String content=cursor.getString(cursor.getColumnIndex("content"));
+ Cuns cun=new Cuns(title,content);
+ myDatabase.close();
+ return cun;
+ }
+ /*
+ * �ڶ���������ã��������ռ�
+ */
+ public void toUpdate(Cuns cun){
+ myDatabase=myHelper.getWritableDatabase();
+ myDatabase.execSQL("update mybook set title='"+ cun.getTitle()+"',times='"+cun.getTimes()+"',content='"+cun.getContent() +"' where ids='"+ cun.getIds()+"'");
+ myDatabase.close();
+ }
+ /*
+ *�ڶ���������ã����������µ��ռ�
+ */
+ public void toInsert(Cuns cun){
+ myDatabase=myHelper.getWritableDatabase();
+ myDatabase.execSQL("insert into mybook(title,content,times)values('"+ cun.getTitle()+"','"+cun.getContent()+"','"+cun.getTimes()+"')");
+ myDatabase.close();
+ }
+ /*
+ * ��һ��������ã����������ѡ��ɾ���ռ�
+ */
+ public void toDelete(int ids){
+ myDatabase=myHelper.getWritableDatabase();
+ myDatabase.execSQL("delete from mybook where ids="+ids+"");
+ myDatabase.close();
+ }
+}
diff --git a/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyOpenHelper.java b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyOpenHelper.java
new file mode 100644
index 000000000..3b7fbb541
--- /dev/null
+++ b/Soft1606070302235/java/edu/hzuapps/androidlabs/luoji/MyOpenHelper.java
@@ -0,0 +1,31 @@
+package com.example.luoji;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteDatabase.CursorFactory;
+import android.database.sqlite.SQLiteOpenHelper;
+
+/*
+ * ��д��SQLiteOpenHelper�࣬�����������ݿ⣬���б����Լ���Ӧ�úú�ѧϰһ�¡�
+ */
+public class MyOpenHelper extends SQLiteOpenHelper{
+
+ public MyOpenHelper(Context context) {
+ super(context, "mydate", null, 1);
+ // TODO Auto-generated constructor stub
+ }
+
+ @Override
+ public void onCreate(SQLiteDatabase db) {
+ // TODO Auto-generated method stub
+ db.execSQL("create table mybook(ids integer PRIMARY KEY autoincrement,title text,content text,times text)");
+ }
+
+ @Override
+ public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+ // TODO Auto-generated method stub
+
+ }
+
+
+}
diff --git a/Soft1606070302235/res/drawable-v24/ic_launcher_foreground.xml b/Soft1606070302235/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 000000000..c7bd21dbd
--- /dev/null
+++ b/Soft1606070302235/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+
+
+
+
+
+（2）在SecondActivity加入文件储存功能, 主要包括一个方法，isSave()用来保存数据;
+（3）新建一个文件夹luoji，建立一个新的MyDataBase.java文件，主要专门用来数据库操作的类，把所有的数据库操作都放到了这里来，其他直接调用就好了，数据的增，删，改，查，都在这里实现
+（4）打包成apk文件发在红米NOTE安卓手机上并运行成功
+（5）按要求上交文件上交
+
+## 3、实验结果
+（1）编辑记事本
+
+（2）点击保存
+
+
+## 4、实验体会
+1.此次实验学会了用数据库保存数据，对安卓应用中的数据存储还有待更进一步的加深学习。
+2.学习了新建一个新的java文件用来数据库操作的类，把所有操作放到同一个.java中，然后只需调用就好了，这样做起来程序就很简洁，给其他人看也很舒服。
diff --git "a/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2101\357\274\211.png" "b/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2101\357\274\211.png"
new file mode 100644
index 000000000..cb507d8f9
Binary files /dev/null and "b/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2101\357\274\211.png" differ
diff --git "a/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2102\357\274\211.png" "b/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2102\357\274\211.png"
new file mode 100644
index 000000000..8df94e442
Binary files /dev/null and "b/Soft1606070302235/\347\254\254\344\272\224\346\254\241\350\257\225\351\252\214\346\210\252\345\233\276\357\274\2102\357\274\211.png" differ
diff --git "a/Soft1606070302235/\347\254\254\345\205\255\346\254\241\350\257\225\351\252\214.md" "b/Soft1606070302235/\347\254\254\345\205\255\346\254\241\350\257\225\351\252\214.md"
new file mode 100644
index 000000000..dfcd43d2d
--- /dev/null
+++ "b/Soft1606070302235/\347\254\254\345\205\255\346\254\241\350\257\225\351\252\214.md"
@@ -0,0 +1,32 @@
+# 第六次实验
+## 一.实验目的
+
+1.掌握Android网络访问方法；
+
+## 二.实验内容
+
+1.从网络下载一个图片；
+
+2.保存到手机，在应用中使用文件；
+
+3.将应用运行结果截图。
+
+## 三.实验步骤
+
+1.先创建一个ThirdActivity负责下载图片
+
+2.创建按钮“下载”，并为之加一个监听器启动线程负责下载图片
+
+3.在xml文件上创建好ImageView,button和输入框
+
+4.在Activity线程上完善下载代码
+四.实验截图
+
+
+
+
+
+
+## 五.实验体会
+1.通过这次实验，学会在网上下载一张图片并接其显示出来。
+2.学会了thread启动，并调用start()启动线程。
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diff --git "a/Soft1606070302235/\347\254\254\345\233\233\346\254\241\350\257\225\351\252\214.md" "b/Soft1606070302235/\347\254\254\345\233\233\346\254\241\350\257\225\351\252\214.md"
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@@ -0,0 +1,24 @@
+# 第四次实验
+
+## 1、实验目的
+1.根据选题要求设计界面布局及控件使用。
+2.布局xml及界面控制操作代码提交并截图。
+3.将应用运行结果截图。
+
+## 2、实验内容
+1.使用一种布局方式，设计所选题目的界面。
+2.通过控件ID获取界面对象，执行相关操作。
+3.实现界面控件的事件处理，例如点击按钮。
+
+## 3、实验步骤
+1、在activity_second.xml中设置使用LinearLayout布局，设置Button节点并调整节点的大小和位置。
+2、在SecondActivity中实现OnClickListener，重写onClick方法。
+3、编译、运行程序，在红米NOTE中进行效果测试。
+
+## 4、实验截图
+
+
+## 5、实验体会
+ 1、对java有更深入的了解。
+ 2、本次实验学会了怎样布局，并在查找资料过程中学会各种布局方式，通过实现OnClickListener对事件监听。
+ 3、要注意XML文件标签的开始与结束要相互对应。