`在这里插入代码片`#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
int main()
{
system("color 73");
int a, b, c, d;
d = 0;
a = 0;
while (a < 9)
{
b = 1;
a = a + 1;
while (b <= a)
{
printf("%d*%d=%-2d ", b, a, d = a * b);
b = b + 1;
}
Sleep (1000);
printf(" \n");
}
}
【while】
#include<stdio.h>
#include<stdlib.h>
int main()
{
system("color 73");
int i, j, k;
k = 0;
for (i = 1; i <= 9; i++)
{
for (j = 1; j <= i; j++)
printf("%d*%d=%-2d ", j, i, k = j * i);
printf(" \n");
}
}
【for】