C++中 vector结合迭代器实现增删操作！

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1 说明：目的是为了将vector里符合isdel==true的元素删掉。

2 实现代码

#include "stdafx.h"#include <assert.h>#include <time.h>#include <ObjectArray.h>using namespace std;class Test{public:Test(bool isdel){this->is_delete=isdel;}bool is_delete;};void print(vector <Test> &v){std::vector<Test >::iterator iter;for(iter=v.begin();iter!=v.end();++iter){cout<<(*iter).is_delete<<" ";assert(!(*iter).is_delete);}cout<<endl;}void add(vector <Test> &v,bool b){Test *t= new Test(b);v.push_back(*t);delete t;cout<<endl;}void vec_del(vector <Test> &v){std::vector<Test >::iterator iter;for(iter=v.begin();iter!=v.end();){if((*iter).is_delete==true){iter=v.erase(iter);}else{++iter;}}}int _tmain(int argc, _TCHAR* argv[]){vector <Test > svec;std::vector<Test >::iterator iter;srand(time(NULL));cout<<"随机赋值:"<<endl;for(int i=0;i<100;++i){int value=rand()%2;add(svec,value);cout<<"i="<<i<<" T/F: "<<svec.at(i).is_delete<<endl;}cout<<endl<<"删除 true:"<<endl;vec_del(svec);print(svec);cout<<endl;system("pause");return 0;}

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