C++ 中的 Lambda 表达式

 1 #include <iostream>
 2 #include <algorithm>
 3 #include <vector>
 4 using namespace std;
 5 
 6 void main()
 7 {
 8     vector<int>myvector;
 9     myvector.push_back(11);
10     myvector.push_back(12);
11     myvector.push_back(13);
12 
13     int sum = 0;
14 
15     //[地址](参数) {函数; }
16     //直到地址，等价于操作变量，等价于返回值
17     for_each(myvector.begin(), myvector.end(), [&sum](int x) {sum += x; });
18 
19     cout << sum;
20 
21     system("pause");
22 }