#include <deque>
#include <iostream>

struct X {
  std::string name_;
  size_t id_;
};

int main(void) {
  std::deque<X> dx;
  dx.push_back({"X0", 0});
  dx.push_back({"X1", 1});
  std::cout << "{" << dx.front().name_ << ", " << dx.front().id_ << "}\n";
  // {X0, 0}

  auto &rx = dx.front();
  rx.name_ = "X2";
  rx.id_ = 2;

  std::cout << "{" << dx.front().name_ << ", " << dx.front().id_ << "}\n";
  // {X2, 2}

  return 0;
}

【 在 RGB 的大作中提到: 】
: 好的，稍晚些时候我写个小的测试程序
:
--
修改:jtcheng FROM 223.71.29.*
FROM 223.71.29.*