小编Red*_*ted的帖子

下面是一个简单的例子,有些东西让我烦恼.此处还有一个指向在线c ++编译器的链接,这里有https://ide.geeksforgeeks.org/oxQd8FU2NV

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

template <class T>
void PrintF (const T& printInt) { cout << printInt << " "; }

template <class T>
class PrintClass {
public:
void operator()(T elem) const {
    cout << elem << " ";
}
};

int main () {
vector<int> vect;
for (int i=1; i<10; ++i) {
    vect.push_back(i);
}


for_each (vect.begin(), vect.end(), PrintClass<int>()); cout << endl;

for_each (vect.begin(), vect.end(), PrintF<int>);      cout << endl;

//  for_each (vect.begin(), vect.end(), …