技術標籤：C++c++

輸出各種形狀的三角形

程式碼樣例：

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = 1; i <= n; ++i)
    {
        for (k = 1; k <= i; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}
 

程式碼示例：

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = n; i >= 1; --i)
    {
        for (k = 1; k <= i; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}
 

程式碼示例：

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = n; i >= 1; --i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= n; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}
 

程式碼示例：

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = 1; i <= n; ++i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= n; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}

程式碼示例：

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = n; i >= 1; --i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= 2*n-i; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}

程式碼示例:

#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = 1; i <= n; ++i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= 2*n-i; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}

//綜合一下上述圖形
#include <iostream>
using namespace std;

int main()
{
    int n,i,k;
    cout << "請輸入行數：";
    cin >> n;
    for (i = n; i >= 1; --i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= 2 * n - i; ++k)
            cout << "*";
        cout << endl;
   
    }
    for (i = 1; i <= n; ++i)
    {
        for (k = 1; k < i; ++k)
            cout << " ";
        for (k = i; k <= 2*n-i; ++k)
            cout << "*";
        cout << endl;
    }
    return 0;
}