乘法口訣表，C語言實現

#include<stdio.h>
int main()
{
int i, j = 0;
for (i = 1; i <= 9; i++)
{
for (j = 1; j <=i; j++)
{
printf("%d*%d=%2d\t", i, j, i*j);
}
printf("\n");
}
return 0;

#include<stdio.h>
int main()
{
int i, j = 0;
for (i = 1; i <= 9; i++)
{
for (j = i; j <=9; j++)
{
printf("%d*%d=%2d\t", i, j, i*j);
}
printf("\n");
}
return 0;

#include<stdio.h>
int main()
{
int i, j = 0;
for (i = 1; i <= 9; i++)
{
for (j = 1; j <=9; j++)
{
printf("%d*%d=%2d\t", i, j, i*j);
}
printf("\n");
}
return 0;