C++基础星形打印方法

来源：互联网发布：java 编程题编辑：程序博客网时间：2024/06/10 14:58

#include <iostream.h>
void rectangle(int heigth, int width);
void isosceles(int heigth);
void diamond(int heigth);
int main()
{
int heigth;
int width;
char c;
cout<<"please choose the shapes that you would like using,if you want to quit please enter Q(uit)"<<endl;
cout<<"(R/I/D)"<<endl;
cin>>c;
if(c == 'R' || c == 'r')
{
cin>>heigth>>width;
rectangle(heigth, width);
}
if(c=='I' || c=='i')
{
cin>>heigth;
isosceles(heigth);
}
if(c=='D' || c=='d')
{
cout<<"Please enter an odd number!"<<endl;
cin>>heigth;
if((heigth%2) != 0)
{
diamond(heigth);
}
else
{
cout<<"This is an IllegalAgrument!"<<endl;
}
}
return 0;
}
void rectangle(int heigth, int width)
{
int i = 0;
int j = 0;
char c = '*';
for(i=0; i<heigth; i++)
{
for(j=0; j<width; j++)
{
cout<<c;
}
cout<<endl;
}
}
void isosceles(int heigth)
{
int i;
int j = 0;
int k = 0;
int row = heigth;
int spacenum;
int starnum;
for(k=0; k<heigth; k++)
{
spacenum = row--;
if(k==0)
{
starnum = 1;
} else
{
starnum = k*2+1;
}
for(i=spacenum; i>0; i--)
{
cout<<" ";
}
for(j=1; j<=starnum; j++)
{
cout<<"*";
}
cout<<endl;
}
}
void diamond(int heigth)
{
int rownum = heigth;
int spacenum;
int starnum;
int i=0;
int j=1;
int k;
int a = rownum/2;
for(i=0; i<heigth; i++)
{
if(i<rownum/2)
{
spacenum = a--;
}
else
{
spacenum = a++;
}
//cout<<spacenum<<"sapcenum"<<endl;
starnum = rownum -spacenum*2;
//cout<<starnum<<"starnum"<<endl;
for(j=0; j<spacenum; j++)
{
cout<<" ";
}
for(k=0; k<starnum; k++)
{
cout<<"*";
}
cout<<endl;
}
}