tp5增删改查基本操作

        //插入数据
        $res = Db::execute('insert into phptab(info) values("小张")');
        dump($res);
        //修改数据
        $res = Db::execute('update phptab set info="你好tp" where id=1');
        //删除数据
        $res = Db::execute('delete from phptab where id=1');
        //查询数据
        $res = Db::query('select * from phptab');
        dump($res);
        // // 防注入操作
        $res = Db::execute('insert into phptab(info) values(:info)', ['info' => '你好tp']);
        $res = Db::execute('insert into phptab(info) values(?)', ["不太好"]);
        // PDO插入
        $res = Db::table('phptab')->insert(['info' => '哈哈哈']);
        // 更新
        $res = Db::table('phptab')->where('id', 2)->update(['info' => '迪迦']);
        $res = Db::table('phptab')->select();
        $res = Db::table('phptab')->where('id', 5)->delete();
        $db = Db::table('phptab');
        $res = $db->insert(['info' => '哈哈哈']);
        $res = Db::name('phptab')->insert(['info' => '哈哈哈']);
        //统计数量count
        $res = $db->count('info');
        dump($res);
        return 1;