如何让8位动态数码管默认显示11003324，再按下启动键开始计时呢

可以在主函数中加入以下代码，实现8位动态数码管默认显示11003324：

void main()
{
    //...省略计时器和按键初始化代码

    P0 = table[1]; //显示1
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0x7f;
    wela = 0;
    wela = 1;

    P0 = table[1]; //显示1
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xbf;
    wela = 0;
    wela = 1;

    P0 = table[0]; //显示0
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xdf;
    wela = 0;
    wela = 1;

    P0 = table[0]; //显示0
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xef;
    wela = 0;
    wela = 1;

    P0 = table[3]; //显示3
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xf7;
    wela = 0;
    wela = 1;

    P0 = table[3]; //显示3
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xfb;
    wela = 0;
    wela = 1;

    P0 = table[2]; //显示2
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xfd;
    wela = 0;
    wela = 1;

    P0 = table[4]; //显示4
    dula = 0;
    dula = 1;
    P0 = 0xff;
    P0 = 0xfe;
    wela = 0;
    wela = 1;

    while(1)
    {
        if(!key_start) //启动计时
        {
            flag = 1;
            beep_flag = 1;
        }
        //...省略其他按键处理代码
    }
}

其中，`table`数组为数码管显示0-9的编码表，共阴极数码管连接在P0口，段选控制引脚为P2.6，位选控制引脚为P2.7。以上代码按照顺序依次将11003324的每一位数码发送到数码管上，实现默认显示。在按下启动键后，计时器开始计时并控制蜂鸣器，同时更新数码管显示。