set 2

#include<iostream>#include<set>using namespace std;int main(){set<int> myset;set<int>::iterator it;//初始化int i=0;for(i=1;i<10;i++){myset.insert(i*10);//set:10  2030405060708090}it=myset.begin();myset.erase(it);//删除10 it=myset.find(60);myset.erase(it,myset.end());//删除60到90的元素cout<<"myset contains:"<<endl; for(it=myset.begin();it!=myset.end();it++){cout<<*it<<endl;}return 0;}