Question

goto语句出现的问题

想编一个乘法口诀表 程序如下：
#include <stdio.h>
#include <conio.h>
void main(void)
{
int i,j,n,m;
int x=9;
int y=5;
clrscr();
for(n=1;n<=9;n++)
{
gotoxy(x,y);
printf("%2d",n);
x+=2;
}
x=8;
y=6;
for(m=1;m<=9;m++)
{
gotoxy(x,y);
printf("%2d",m);
y+=1;
}
x=9;
y=6;
for(i=1;i<=9;i++)
{
for(j=1;j<9;j++)
{
gotoxy(x,y);
printf("%2d",i*j);
y+=1;
}
x+=2;
y+=9;
}
}
出现的错误是goto语句，不知道怎么解决，clrscr()清屏在VC++中也不能用吗？求指教

Answer 1

gotoxy(), clrscr();仅用于TC
/*
1× 1 = 1
1× 2 = 2 2× 2 = 4
1× 3 = 3 2× 3 = 6 3× 3 = 9
1× 4 = 4 2× 4 = 8 3× 4 = 12 4× 4 = 16
1× 5 = 5 2× 5 = 10 3× 5 = 15 4× 5 = 20 5× 5 = 25
1× 6 = 6 2× 6 = 12 3× 6 = 18 4× 6 = 24 5× 6 = 30 6× 6 = 36
1× 7 = 7 2× 7 = 14 3× 7 = 21 4× 7 = 28 5× 7 = 35 6× 7 = 42 7× 7 = 49
1× 8 = 8 2× 8 = 16 3× 8 = 24 4× 8 = 32 5× 8 = 40 6× 8 = 48 7× 8 = 56 8× 8 = 64
1× 9 = 9 2× 9 = 18 3× 9 = 27 4× 9 = 36 5× 9 = 45 6× 9 = 54 7× 9 = 63 8× 9 = 72 9× 9 = 81
Press any key to continue
*/
#include <stdio.h>#include <conio.h>
void main(void) {
int n,m;
for(n = 1;n <= 9;n++) {
for(m = 1;m <= n;m++)
printf("%2d×%2d = %2d ",m,n,m * n);
printf("\n");
}
}

Answer 2

这个gotoxy是光标定位的，和clrscr一样是TC才有的，
vc没有