有没有大佬帮忙看看这段C语言代码有啥问题

#include<graphics.h>
#include<time.h>
#include<math.h>
#include<conio.h>
#include<stdio.h>
#define PI 3.1415926
#define UP 72/上移↑键：添加数字时钟/
#define DOWN 80/下移↓键：去除数字时钟/
#define ESC 27/Esc键：退出系统/
// Clock.cpp : Defines the entry point for the console application.

#include “stdafx.h”

struct linetime
{
int X1,Y1,X2,Y2; //线段起点坐标和终点坐标
};
linetime line1[15]; //时针、分针、秒针及时间刻度线的起止点坐标
void ClockLine();
void DigitalClock(int x,int y,int r);
int keyhandle(int key,int flag);
double h,m,s; /全局变量：小时、分、秒/
double angle;
int maxx,maxy,r;

int main(int argc, char* argv[])
{
int driver,mode=0;
driver=DETECT; /自动检测显示设备/
initgraph(&driver,&mode,""); /初始化图形系统/
maxx=getmaxx(); //获取DOS控制台的宽度
maxy=getmaxy(); //获取DOS控制台的高度
if(maxx>maxy)
r=maxy/2;
else
r=maxx/2;
ClockLine(); //画时间刻度线
DigitalClock(maxx/2,maxy/2,r); //画时针、分针、秒针
closegraph(); /关闭图形系统/
return 0;
}

void ClockLine()
{
char buffer2[4];
int i;
setcolor(6); /设置当前画线颜色/
setlinestyle(0,0,3); //线宽为3
circle(maxx/2,maxy/2,r); //画模拟时钟外圆
for(i=3;i<15;i++) //计算并画出12条小时刻度线
{
setcolor(4);
setlinestyle(0,0,1);
angle=i30PI/180;
line1[i].X1 =int(r0.9cos(angle)+maxx/2);
line1[i].Y1 =int(r0.9sin(-angle)+maxy/2);
line1[i].X2 =int(rcos(angle)+maxx/2);
line1[i].Y2 =int(rsin(-angle)+maxy/2);
line(line1[i].X1 ,line1[i].Y1 ,line1[i].X2 ,line1[i].Y2 );//画时间刻度线
sprintf(buffer2,"%d",int(15-i));
outtextxy(line1[i].X1 ,line1[i].Y1 ,buffer2);//输出刻度数字
}
}

void DigitalClock(int x,int y,int r)
{
time_t rawtime;
struct tmtimeinfo;
int k=0,flag=0;
char buffer1[10];
for(;