学习笔记：for循环嵌套，输出“*”多边图形

#include
int main()
{
int i, k,j;
for (i = 1; i <= 4; ++i)//上四行打印
{
for (k = 1; k <= 8 - i * 2; ++k)
{
printf(" “);
}
for (j = 1; j <= 2 + i * 4; ++j)
{
printf(”");
}
printf("\n");
}
for (i = 1; i <= 3; ++i)//下三行打印
{
for (k = 1; k <= i * 2; ++k)
{
printf(" “);
}
for (j = 1; j <= 18 - i * 4; ++j)
{
printf(”");
}
printf("\n");
}
return 0;
}

输出结果：