*******
******
*****
****
***
**
*
#include "iostream.h"
int main()

{
for (int i=7;i>0;i--)
{
int p=i;
while (p--)
{
cout<<"*";
}
cout<<"\n";
}
return 0;
}輸出這樣的三角形類似
*
**
***
****
*****
#include "iostream.h"
int main()

{
for (int i=1;i<=5;i++)
{
int p=i;
while (p--)
{
cout<<"*";
}
cout<<"\n";
}
return 0;
}*
**
***
****
*****
******
*******
********
*********
**********
#include "iostream.h"
int main()

{
int sum = 10;
for (int i=1;i<=sum;i++)
{
int p=(sum -i)/2;
while (p--)
{
cout<<" ";
}
p=i;
while (p--)
{
cout<<"*";
}
cout<<"\n";
}
return 0;
}*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
* * * * * * * * *
* * * * * * * * * *
#include "iostream.h"
int main()

{
int sum = 10;
for (int i=sum;i>=0;i--)
{
int p=i;
while (p--)
{
cout<<" ";
}
p=sum -i;
while (p--)
{
cout<<"* ";
}
cout<<"\n";
}
return 0;
}
