当运行下列程序是,在键盘上第一列开始输入987654321main(){int a;float b,c;scanf("%2d%3f%4f",&a,&b,&c);printf("\na=%d,b=%f,c=%f\n",a,b,c);}

当运行下列程序是,在键盘上第一列开始输入987654321main(){int a;float b,c;scanf("%2d%3f%4f",&a,&b,&c);printf("\na=%d,b=%f,c=%f\n",a,b,c);}
当运行下列程序是,在键盘上第一列开始输入987654321
main()
{
int a;float b,c;
scanf("%2d%3f%4f",&a,&b,&c);
printf("\na=%d,b=%f,c=%f\n",a,b,c);
}

当运行下列程序是,在键盘上第一列开始输入987654321main(){int a;float b,c;scanf("%2d%3f%4f",&a,&b,&c);printf("\na=%d,b=%f,c=%f\n",a,b,c);}
你是要干什么呢?