diff --git a/CS b/CS
deleted file mode 100644
index 1bcf335..0000000
--- a/CS
+++ /dev/null
@@ -1,119 +0,0 @@
-package edu.hzuapps.diary;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.content.ContentValues;
-import android.content.Intent;
-import android.database.sqlite.SQLiteDatabase;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.DatePicker;
-import android.widget.EditText;
-import android.widget.Toast;
-
-import java.util.Calendar;
-
-public class cunchuActivity extends AppCompatActivity {
-
-    private Button fanhuibt,qdbt,qcbt;//返回按钮，确定按钮，清除按钮
-    private DatePicker datePicker;//时间计时器
-    private int year,month,day;
-    private DBOpenHelper dbOpenHelper;//声明数据库
-    private EditText editText;//输入框
-
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_cunchu);
-
-        qcbt = findViewById(R.id.qc);
-        fanhuibt = findViewById(R.id.fanhui3);
-        datePicker = findViewById(R.id.datepicker);
-        qdbt = findViewById(R.id.queding2);
-        editText = findViewById(R.id.edtext);//输入框
-        dbOpenHelper = new DBOpenHelper(cunchuActivity.this,"db_date",null,2);//创建找到数据库
-        SQLiteDatabase db = dbOpenHelper.getWritableDatabase();//创建数据库对象
-
-        //返回上一个页面
-        fanhuibt.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(cunchuActivity.this, jiluActivity.class);
-                startActivity(intent);
-            }
-        });
-
-        //初始化一个日历对象
-        Calendar calendar = Calendar.getInstance();
-        year = calendar.get(Calendar.YEAR);
-        month = calendar.get(Calendar.MONTH);
-        day = calendar.get(Calendar.DAY_OF_MONTH);
-
-
-        ///////////////////////时间计时器操作
-        datePicker.init(year, month, day, new DatePicker.OnDateChangedListener() {
-            @Override
-            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
-                cunchuActivity.this.year = year;
-                cunchuActivity.this.month = monthOfYear;
-                cunchuActivity.this.year = dayOfMonth;
-
-//****
-//添加内容在这
-//****
-                //点确定按钮会做的事情：
-                qdbt.setOnClickListener(new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        String str = year+"年"+(monthOfYear+1)+"月"+dayOfMonth+"日";
-                        //Toast.makeText(cunchuActivity.this,str,Toast.LENGTH_LONG).show();
-                        if (!(editText.getText().toString().equals(""))){
-                            insertData(db,year,(monthOfYear+1),dayOfMonth,editText.getText().toString()); //插入数据库
-                            Toast.makeText(cunchuActivity.this,"添加成功",Toast.LENGTH_SHORT).show();
-                        }else {
-                            Toast.makeText(cunchuActivity.this,"请输入事件内容",Toast.LENGTH_SHORT).show();
-                        }
-
-
-
-                    }
-                });
-
-            }
-        });
-        ////////////////////////////////////////////////////////
-//***
-//***
-//删除在这！！
-//***
-//***
-        qcbt.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                db.delete("tb_date",null,null);
-                Toast.makeText(cunchuActivity.this,"清除成功",Toast.LENGTH_LONG).show();
-            }
-        });
-
-
-
-
-
-    }
-
-//***
-//***
-//修改在这！！
-//***
-//***
-    private void insertData(SQLiteDatabase sqLiteDatabase , int yearin, int monthin, int dayin, String neirongin){
-        ContentValues values = new ContentValues();
-        values.put("year",yearin);
-        values.put("month",monthin);
-        values.put("day",dayin);
-        values.put("neirong",neirongin);
-        sqLiteDatabase.insert("tb_date",null,values);
-    }
-}
\ No newline at end of file