调用容器内对象成员函数

#include<boost/lexical_cast.hpp>#include<vector>using namespace std;using namespace boost;class Widget{string name;public:Widget(int x){ name=lexical_cast<string>(x);}~Widget(){}void ShowValue(){ cout<<name<<endl;}};int main(){ vector<Widget*> vec; for (int i=100;i<200;i++) { vec.push_back(new Widget(i)); } for_each(vec.begin(),vec.end(),mem_fun(&Widget::ShowValue));return 0;}