#include <iostream>
using namespace std;
<p>// 定义一个结构体
struct Result {
int sum;
int product;
double *erage;
};</p><p>// 函数返回结构体
Result calculate(int a, int b) {
Result res;
res.sum = a + b;
res.product = a * b;
res.*erage = (a + b) / 2.0;
return res;
}</p><p>int main() {
Result r = calculate(4, 6);
cout << "Sum: " << r.sum << endl;
cout << "Product: " << r.product << endl;
cout << "Average: " << r.*erage << endl;
return 0;
}</p>

#include <iostream>
#include <tuple>
using namespace std;
<p>// 函数返回tuple
tuple<int, int, double> calculate(int a, int b) {
int sum = a + b;
int product = a * b;
double *erage = (a + b) / 2.0;
return make_tuple(sum, product, *erage);
}</p><p>int main() {
auto result = calculate(4, 6);</p><pre class='brush:php;toolbar:false;'>// 使用std::get获取各个值
cout << "Sum: " << get<0>(result) << endl;
cout << "Product: " << get<1>(result) << endl;
cout << "Average: " << get<2>(result) << endl;

// 或者用结构化绑定（C++17）
auto [s, p, *g] = calculate(4, 6);
cout << "Sum: " << s << ", Product: " << p << ", Average: " << *g << endl;

return 0;

}