include<stdio.h>
int main()
{
int hang, lie, ji;//行,列,积
for (hang = 1; hang <= 9; hang++)//每行的循环
{
for (lie = 1; lie <= hang; lie++)//每行所在的列,显然每行的列数等于行,比如说第五行共有5 列,第3行共有3列
{
ji = hang * lie;//每个式子为行乘列的积
printf("%d*%d=%d\t", hang, lie, ji);//打印并加制表符(\t)
}
printf("\n");//每行换行
}
return 0;
}