C++课后作业 29. 教材习题11

• • 原题题目
  • 代码实现
  • 提交结果

#include 
#include 
#include 
#include 

using namespace std;

class Dog {
 public:
  Dog() {}
  Dog(int weight = 0, int year = 0) : weight_(weight), year_(year) {}

  int weight() const { return weight_; }
  int year() const { return year_; }

 private:
  int weight_;
  int year_;
};

int main() {
  Dog dog1(5, 10);
  ofstream outfile;
  outfile.open("silyfile.txt");
  outfile << dog1.weight() << '_' << dog1.year() << endl;
  outfile.close();

  string content;
  ifstream infile;
  infile.open("silyfile.txt");
  infile >> content;

  string tmpweight, tmpyear;
  int index = 0;
  while (index < static_cast(content.size()) && content[index] != '_') ++index;
  tmpweight = content.substr(0, index);
  tmpyear = content.substr(index + 1);

  cout << "Weight:" << tmpweight << ' ' << "Age:" << tmpyear;
  infile.close();

  return 0;
}