andriod 创建数据库

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

/**
 * Created by eric on 2018/9/18.
 */

public class DBHelper extends SQLiteOpenHelper {

    public DBHelper(Context context) {
        super(context, "channel.db", null, 1);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        String sql = "create table channel(id integer primary key, name text)";
        db.execSQL(sql);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}