神圣计划账户怎么来:什么是C语言中内存溢出？关于malloc函数的~

"gotoxy()","moveto()"包含在#include <conio.h>中了.
转载一个程序给你:(ZT)

算法：将当前时间显示到屏幕，当时间发生变化时，清屏，显示新的时间（当有键盘操作时退出程序）。
显示时间格式：小时：分钟：秒

/* DEV C++ Win XP*/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <time.h>

typedef struct
{
int x;
int y;
}Point;

time_t now;
struct tm *pt,t1,t2;

int printpoint(Point p)
{
Point p1;
p1.x=p.x+2; p1.y=p.y+4;
gotoxy(p1.x,p1.y); printf("%c%c",2,2);
gotoxy(p1.x, p1.y+1); printf("%c%c",2,2);
p1.y+=4;
gotoxy(p1.x,p1.y); printf("%c%c",2,2);
gotoxy(p1.x,p1.y+1); printf("%c%c",2,2);
return 0;
}

int print0(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else
printf("%c%4s%c",2," ",2);
}
return 0;
}

int print1(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
printf("%5s%c"," ",2);
}
return 0;
}

int print2(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%5s%c"," ",2);
else
printf("%c",2);
}
return 0;
}

int print3(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else
printf("%5s%c"," ",2);
}
return 0;
}

int print4(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i<6) printf("%c%4s%c",2," ",2);
else if(i==6)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else printf("%5s%c"," ",2);
}
return 0;
}

int print5(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c",2);
else
printf("%5s%c"," ",2);
}
return 0;
}

int print6(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c",2);
else
printf("%c%4s%c",2," ",2);
}
return 0;
}

int print7(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0) printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else printf("%5s%c"," ",2);
}
return 0;
}

int print8(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);

else printf("%c%4s%c",2," ",2);
}
return 0;
}

int print9(Point p)
{
int i=0;
for(;i<13;i++)
{
gotoxy(p.x+1, p.y+i);
if(i==0¦¦i==6¦¦i==12)
printf("%c%c%c%c%c%c",2,2,2,2,2,2);
else if(i>0&&i<6)
printf("%c%4s%c",2," ",2);

else
printf("%5s%c"," ",2);
}
return 0;
}

int clear(Point p)
{
int i=0;
for(;i<13;i++)
gotoxy(p.x,p.y+i); printf("%16s"," ");
return 0;
}

int printtime(Point p, int n)
{
int a,b;
Point pp;
a=n/10, b=n%10;
pp.x=p.x+8, pp.y=p.y;
switch(a)
{
case 0: print0(p); break;
case 1: print1(p); break;
case 2: print2(p); break;
case 3: print3(p); break;
case 4: print4(p); break;
case 5: print5(p); break;
}
switch(b)
{
case 0: print0(pp); break;
case 1: print1(pp); break;
case 2: print2(pp); break;
case 3: print3(pp); break;
case 4: print4(pp); break;
case 5: print5(pp); break;
case 6: print6(pp); break;
case 7: print7(pp); break;
case 8: print8(pp); break;
case 9: print9(pp); break;
}
return 0;
}

int main()
{
Point phour, pmin, psec,point1,point2;
phour.x=9, pmin.x=32, psec.x=55;
phour.y=pmin.y=psec.y=7;
point1.x=25, point2.x=49;
point1.y=point2.y=7;

clrscr();
textbackground(BLUE);
textcolor(YELLOW);
now=time(0);
pt=localtime(&now);
t1=*pt;
printtime(phour, t1.tm_hour);
printpoint(point1);
printtime(pmin, t1.tm_min);
printpoint(point2);
printtime(psec, t1.tm_sec);
while(1)
{
now=time(0);
pt=localtime(&now);
t2=*pt;
if(t2.tm_sec!=t1.tm_sec)
{
t1=t2;
clrscr();
printtime(phour, t1.tm_hour);
printpoint(point1);
printtime(pmin, t1.tm_min);
printpoint(point2);
printtime(psec, t1.tm_sec);
}
if(bioskey(1)==0) continue;
else exit(0);
}

return 0;
}

参考文献：FROM do熊