利用vector分配动态内存

// vectorTest.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include <vector>using namespace std;int ComputeSize(void);//计算需要的内存大小int ComputeSize(void){int nRet = 500;return nRet;}int _tmain(int argc, _TCHAR* argv[]){vector<char> buf;int nSize = ComputeSize();//运行中计算buf.resize(nSize);//利用vector的内存分配策略，避免new，deletestrncpy(&buf[0], "Hello World", 500);return 0;}