STL for_each

#include <cstdlib>
#include <vector>
#include <list>
#include <numeric>
#include <algorithm>
#include <iostream>
#include <set>
#include <string>
#include <assert.h>
using namespace std;

// STL函数for_each(),sort(),random_shuffle()....
using namespace std;
struct Book{
	string title;
	int price;
};
void showBook(Book &b)
{
	cout << _T("书名: 《") << b.title << _T("》 价格: ") << b.price << endl;
};
bool compareBook(const Book & b1, const Book & b2)
{
	if (b1.price >= b2.price)// 这里只处理了价格排序
	{
		return true;
	}
	else
		return false;
}

int main()
{
	Book books[]={{"C Primer Plus",45}, {"C++ Primer Plus",54}, {"深度探索C++对象模型",40}};
	vector<Book> mybooks;// 声明一个空容器变量
	int i;
	for (i=0; i < sizeof(books)/sizeof(Book); i++)
	{
		mybooks.push_back(books[i]);// 向容器尾部插入元素
	};
	cout << "顺序输出：" << endl;
	for_each(mybooks.begin(), mybooks.end(), showBook);// 使用STL函数for_each()
	cout << "排序输出：" << endl;
	sort(mybooks.begin(), mybooks.end(), compareBook);
	for_each(mybooks.begin(), mybooks.end(), showBook);// 使用STL函数for_each()
	cout << "乱序输出：" << endl;
	random_shuffle(mybooks.begin(), mybooks.end());
	for_each(mybooks.begin(), mybooks.end(), showBook);// 使用STL函数for_each()
	return 0;
}