reverse()

参照算法笔记P233

#include<stdio.h>
#include<iostream>
#include<string>
#include<algorithm>
using namespace std;
int main(){
	int a[6]={10,11,12,13,14,15};
	reverse(a,a+4);			//将a[0]-a[3]反转 
	int i;
	for(i=0;i<6;i++){
		printf("%d ",a[i]);
	}
	
	string s="abcdefg";
	reverse(s.begin()+1,s.begin()+4);
	cout<<s;		//adcbefg 
}