打印星号三角形 c++

以下是一个打印星号三角形的C++程序：

#include <iostream>
using namespace std;

int main() {
    int n;
    char c;
    cout << "How many lines? ";
    cin >> n;
    cout << "What character? ";
    cin >> c;

    for (int i = 1; i <= n; i++) {
        for (int j = 0; j <= n - 1 - i; j++) {
            cout << " ";
        }
        for (int j = 1; j <= i * 2 - 1; j++) {
            cout << c;
        }
        cout << endl;
    }

    return 0;
}

这段代码会首先询问用户要打印的行数和字符，然后使用嵌套循环打印出相应的星号三角形。外层循环控制行数，内层循环控制每行中字符的数量。在每行中，首先打印一定数量的空格，然后打印一定数量的字符。最后，输出一个换行符，进入下一行的打印。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [东方博易OJ——1006 - 【入门】打印星号三角形](https://blog.csdn.net/zjx120307/article/details/126435191)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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