尝试读取或写入受保护的内存 ？

Question

代码：#include<iostream>#include<string>#include"ChainNode.h"#include"Chain.h";using namespace std;void main(){string str="";ChainNode* temp1;ChainNode* temp2;Chain* chain=new Chain();ChainNode* data=new ChainNode(3);data->linknext=new ChainNode(2);temp1=data->linknext;temp1->linknext=new ChainNode(1);temp1=data;cout<< data->getData()<<endl;cout<<temp1->linknext->getData()<<endl;cout<<temp1->linknext->linknext->getData()<<endl;cout.flush();while(temp1!=NULL){temp2=temp1->linknext;//////////////////////////////////////////异常在此句产生。chain->addData(temp1->getData(),temp1);temp1=temp1->linknext;}chain->output();cin>>str;}

Answer 1

ChainNode的构造函数不会没有初始化linknext成员吧……

Answer 2

str 必须给定长度。