c++ - C++ variable_name.attribute = x

Question

我看过这个，但我找不到他在做什么。我特别感兴趣computers[I].name = 'ever'：你能在 C++ 中有一个 variable_name.attribute 吗？例如 student.grade = 6, student.name = "Tedd" 等等？

标签： c++arraysclassdictionaryvector

Answer 1

当然，为什么不：

#include <string>

struct Computer {
  std::string name;
};

int main() {
  Computer computers[100];

  for (auto& cp : computers) {
    cp.name = "ever";
  }
}

---

这是您感兴趣的学生示例：

#include <string>
#include <iostream>

struct Student {
  std::string name;
  double grade;
};

int main() {
  Student students[3];
  students[0].name = "s1";
  students[0].grade = 95.7;

  students[1].name = "s2";
  students[1].grade = 96.6;

  students[2].name = "s3";
  students[2].grade = 77.4;

  for (Student const& s : students) {
    std::cout << s.name << " : " << s.grade << '\n';
  }
}

悬停执行

s1：95.7
s2：96.6
s3：77.4