C++ 实例 – 创建各类三角形图案

最后更新于:2022-03-27 02:34:09

C++ 实例 – 创建各类三角形图案

C++ 实例  – 创建各类三角形图案 C++ 实例

创建各类三角形图案。

实例

#include <iostream>
using namespace std;

int main()
{
int rows;

cout << "输入行数: ";
cin >> rows;

for(int i = 1; i <= rows; ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << "* ";
}
cout << "\n";
}
return 0;
}

以上程序执行输出结果为:

*
* *
* * *
* * * *
* * * * *

实例

#include <iostream>
using namespace std;

int main()
{
int rows;

cout << "输入行数: ";
cin >> rows;

for(int i = 1; i <= rows; ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << j << " ";
}
cout << "\n";
}
return 0;
}

以上程序执行输出结果为:

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

实例

#include <iostream>
using namespace std;

int main()
{
char input, alphabet = A;

cout << "输入最后一个大写字母: ";
cin >> input;

for(int i = 1; i <= (inputA+1); ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << alphabet << " ";
}
++
alphabet;

cout << endl;
}
return 0;
}

以上程序执行输出结果为:

A
B B
C C C
D D D D
E E E E E

实例

#include <iostream>
using namespace std;

int main()
{
int rows;

cout << "输入行数: ";
cin >> rows;

for(int i = rows; i >= 1; —i)
{
for(int j = 1; j <= i; ++j)
{
cout << "* ";
}
cout << endl;
}

return 0;
}

以上程序执行输出结果为:

* * * * *
* * * *
* * * 
* *
*

实例

#include <iostream>
using namespace std;

int main()
{
int rows;

cout << "输入行数: ";
cin >> rows;

for(int i = rows; i >= 1; —i)
{
for(int j = 1; j <= i; ++j)
{
cout << j << " ";
}
cout << endl;
}

return 0;
}

以上程序执行输出结果为:

1 2 3 4 5
1 2 3 4 
1 2 3
1 2
1

实例

#include <iostream>
using namespace std;

int main()
{
int space, rows;

cout <<"输入行数: ";
cin >> rows;

for(int i = 1, k = 0; i <= rows; ++i, k = 0)
{
for(space = 1; space <= rowsi; ++space)
{
cout <<" ";
}

while(k != 2*i1)
{
cout << "* ";
++
k;
}
cout << endl;
}
return 0;
}

以上程序执行输出结果为:

        *
      * * *
    * * * * *
  * * * * * * *
* * * * * * * * *

实例

#include <iostream>
using namespace std;

int main()
{
int rows, count = 0, count1 = 0, k = 0;

cout << "输入行数: ";
cin >> rows;

for(int i = 1; i <= rows; ++i)
{
for(int space = 1; space <= rowsi; ++space)
{
cout << " ";
++
count;
}

while(k != 2*i1)
{
if (count <= rows1)
{
cout << i+k << " ";
++
count;
}
else
{
++
count1;
cout << i+k2*count1 << " ";
}
++
k;
}
count1 = count = k = 0;

cout << endl;
}
return 0;
}

以上程序执行输出结果为:

        1
      2 3 2
    3 4 5 4 3
  4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5

实例

#include <iostream>
using namespace std;

int main()
{
int rows;

cout << "输入行数: ";
cin >> rows;

for(int i = rows; i >= 1; —i)
{
for(int space = 0; space < rowsi; ++space)
cout << " ";

for(int j = i; j <= 2*i1; ++j)
cout << "* ";

for(int j = 0; j < i1; ++j)
cout << "* ";

cout << endl;
}

return 0;
}

以上程序执行输出结果为:

* * * * * * * * *
  * * * * * * *
    * * * * *
      * * *
        *

实例

#include <iostream>
using namespace std;

int main()
{
int rows, coef = 1;

cout << "Enter number of rows: ";
cin >> rows;

for(int i = 0; i < rows; i++)
{
for(int space = 1; space <= rowsi; space++)
cout <<" ";

for(int j = 0; j <= i; j++)
{
if (j == 0 || i == 0)
coef = 1;
else
coef = coef*(ij+1)/j;

cout << coef << " ";
}
cout << endl;
}

return 0;
}

以上程序执行输出结果为:

           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1 

实例

#include <iostream>
using namespace std;

int main()
{
int rows, number = 1;

cout << "输入行数: ";
cin >> rows;

for(int i = 1; i <= rows; i++)
{
for(int j = 1; j <= i; ++j)
{
cout << number << " ";
++
number;
}

cout << endl;
}

return 0;
}

以上程序执行输出结果为:

1
2 3
4 5 6
7 8 9 10

C++ 实例  – 创建各类三角形图案 C++ 实例