c++ - 如何访问 C++ 字符矩阵的一行？

Question

经过多年的 matlab 学习后，我正在重新学习 C++。这是我写的一些代码

char  couts[3][20]={"Area of Rectangle: ","Area of Triangle: ","Area of Ellipse: "};
char C[20];
for (int i = 0; i < 3; i++) {
  C=couts[i];
  cout << C;
  //code that calculates and couts the area
}

显然，这是打印那一行 couts 的错误方法，但在尝试了许多变体和谷歌搜索后，我无法弄清楚我做错了什么。 :(

Answer 1

你可能应该使用 C++ 特性而不是旧的 C 习语:

#include <iostream>
#include <array>
#include <string>

const std::array<std::string, 3> couts{ "Area of Rectangle: ","Area of Triangle: ","Area of Ellipse: " };

int main()
{  
  std::string C;
  for (int i = 0; i < couts.size(); i++) {
    C = couts[i];
    std::cout << C << "\n";
    //code that calculates and couts the area
  }
}