[求助]为什么是死循环--*purana转移--*feng1256转移

〖艾〓木〗

#include <iostream>
#include <string>
using namespace std;
typedef struct node
{
int number;
int password;
struct node *next;
}SLink;
int GetLength(SLink *sq)
{

int i=1;
SLink *p=sq->next;
while(p!=sq)
{
i++;p=p->next;
}
return i;
}
int DelElem(SLink *sq,int i)
{
int j=1;
SLink *p=sq,*q;
if(i<1 || i>GetLength(sq))
return 0;
else if(i==1)
{
if(GetLength(sq)==1)
{q=sq;free(q);
sq=NULL;}
else
{
while(j<GetLength(sq))
{
p=p->next;j++;
}
q=sq;
p->next=q->next;
sq=q->next;
free(q);
return 1;
}
}
else
{
while(j<i-1)
{
p=p->next;j++;
}
q=p->next;
p->next=q->next;
free(q);
return 1;
}
}

void main()
{
int n;
cout << "n=";
cin >> n;
int m;
cout <<"m=";
cin >> m;
SLink *sq ;
SLink *people = (SLink *)malloc(sizeof(SLink));
people->number=1;
cout << "people->password=" ;
cin >> people->password;
people->next=people;
SLink *lq =people;
for(int i=1;i<n;i++)
{
sq =(SLink *)malloc(sizeof(SLink));
sq->number =i+1;
cout <<"sq->password=";
cin >> sq->password;
lq->next =sq;
sq->next =people;
lq = sq;
}
DelElem(people,1);
for(sq=people;sq->next!=people;sq=sq->next)
{

cout << sq->number;
//cout << sq->next;
}
cout << sq->number;
}
哪位高手能帮帮我为什么是死循环

海的无奈

能不能加点注释,看着就晕!

最爱水晶

楼主程序的目标是什么?或说是为了完成什么功能而编的?

市井游侠々

这应该到C语言版去...
死循环就是当进入了循环后..就永远不终止地执行下去....

￡籍の口∮

不是死循环
是你while(j<GetLength(sq))
{
p=p->next;j++;
}
q=sq;
p->next=q->next;
sq=q->next;
free(q);//释放了没有把剩下的连接起来,以至后来输出时,输出非法内存空间(对不起,没时间读你代码了,自己把q前面的与后面的连上吧)
return 1;