#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
bool isOdd(int i)
{
return (i % 2 == 1);
}
void func(int i)
{
cout << i << endl;
}
int main()
{
vector<int> data;
data.push_back(10);
data.push_back(21);
data.push_back(30);
//find函数如果找到所需的值则返回该值指针，否则返回end指针
cout << "find()-----------------" << endl;
auto a = find(data.begin(), data.end(), 50);
cout << *(--a) << endl;
//find_if函数根据自定义函数找到符合的第一个值并返回;find_if_not即返回不满足条件的第一个值
cout << "find_if()-----------------" << endl;
auto b = find_if(data.begin(),data.end(),isOdd);
cout << *b << endl;
//for_each函数将容器的值作为回调函数的实参
cout << "for_each()-----------------" << endl;
for_each(data.begin(), data.end(), func);
//search函数求某一个容器是否包含另一个容器，值的顺序需要相同
vector<int> a1;
a1.push_back(10);
a1.push_back(20);
a1.push_back(30);
int a2[] = {20,30};
auto it1=search(a1.begin(),a1.end(),a2,a2+2);
cout << "search()-----------------" << endl;
if (it1 != a1.end())
{
cout << it1 - a1.begin() << endl;
}
//search_n函数用于寻找在某一容器中是否存在固定数量的值，且需要连续
int b1[] = {10,20,20,30,40};
vector<int> b2(b1,b1+5);
auto it = search_n(b2.begin(),b2.end(),2,20);
cout << "search_n()-----------------" << endl;
cout << it - b2.begin() << endl;
//sort函数排序，默认从小到大
cout << "sort()-----------------" << endl;
int b3[] = {1,3,4,2,0};
sort(b3, b3 + 5);
for_each(b3,b3+5,func);
}
输出结果：
