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  • 2021/3/3

    1.今日收获内容

    开始写个人作业写了数据库的链接

    package com.example.myapplication2;

    import android.content.Context;
    import android.database.sqlite.SQLiteDatabase;
    import android.database.sqlite.SQLiteOpenHelper;
    import android.widget.Toast;

    public class DatabaseHelper extends SQLiteOpenHelper {
    public static final String CREATE_LIST="create table TTList3("
    +"id integer primary key autoincrement,"
    +"姓名 text,"
    +"体温 text,"
    +"日期时间 text,"
    +"所在地 text,"
    +"状况 text)";
    private Context mContext;

    public DatabaseHelper(Context context, String name,
    SQLiteDatabase.CursorFactory factory, int version){
    super(context,name,factory,version);
    mContext=context;
    }


    @Override
    public void onCreate(SQLiteDatabase db) {
    db.execSQL(CREATE_LIST);
    Toast.makeText(mContext, "创建成功", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
    }



    package com.example.myapplication2;

    import android.content.Context;
    import android.database.sqlite.SQLiteDatabase;
    import android.database.sqlite.SQLiteOpenHelper;
    import android.widget.Toast;

    public class DatabaseHelper2 extends SQLiteOpenHelper {
    public static final String CREATE_LIST="create table TTList2("
    +"id integer primary key autoincrement,"
    +"学号 text,"
    +"姓名 text,"
    +"手机号 text,"
    +"班级 text)";
    private Context mContext;

    public DatabaseHelper2(Context context, String name,
    SQLiteDatabase.CursorFactory factory, int version){
    super(context,name,factory,version);
    mContext=context;
    }


    @Override
    public void onCreate(SQLiteDatabase db) {
    db.execSQL(CREATE_LIST);
    Toast.makeText(mContext, "创建成功", Toast.LENGTH_SHORT).show();
    }
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
    }

    2.遇到的问题

    链接时有错修改后已经好了

    3.明天目标

    要就老师提出的需求整改

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  • 原文地址:https://www.cnblogs.com/qiangini/p/14905678.html
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