今天 给大家分享一个用 C 语言写的 九九乘法表（楼梯板），效果还是蛮好看的！！！
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#include <stdio.h>
#include <stdlib.h>
int main(void) {
int iCols = 0; //列数
int iRows = 0; //行数
int iSpace = 0; //打印空格
//1*1=1 在左上角
for (iCols = 1; iCols <= 9; ++iCols)
{
for (iRows = 1; iRows <= iCols; ++iRows) //打印式子
{
printf("%d*%d=%2d ", iRows, iCols, iRows*iCols);
}
printf("\n");
}
//1*1=1 在右上角
for (iCols = 1; iCols <= 9; ++iCols)
{
for (iSpace = 9; iSpace > iCols; --iSpace) //打印空格
{
printf(" ");
}
for (iRows = iCols; iRows >= 1; --iRows) //打印式子
{
printf("%d*%d=%2d ", iCols, iRows, iRows*iCols);
}
printf("\n");
}
printf("\n");
//1*1=1 在左下角
for (iCols = 9; iCols >= 1; --iCols)
{
for (iRows = 1; iRows <= iCols; ++iRows) //打印式子
{
printf("%d*%d=%2d ", iRows, iCols, iRows*iCols);
}
printf("\n");
}
//1*1=1 在右下角
for (iCols = 9; iCols >= 1; --iCols)
{
for (iSpace = 9; iSpace > iCols; --iSpace) //打印空格
{
printf(" ");
}
for (iRows = iCols; iRows >= 1; --iRows) //打印式子
{
printf("%d*%d=%2d ", iCols, iRows, iRows*iCols);
}
printf("\n");
}
system("pause");
return 0;
}
原文：http://www.cnblogs.com/Jihan-/p/7624256.html