怎么回事啊  ，谢谢各位大侠。
原来的代码是没有问题的，之后加了这么一段，
   char gpsPoint[3];
                char  ** gpsNameP = new char * [Sp3head.gpsnum];
                for(int i=0;i<Sp3head.gpsnum;i++)gpsNameP[i]= new char[3];
                int m,j;
                for( m=0,j =9;m<Sp3head.gpsnum;)
                {
                    strncpy(gpsPoint,ch+j,3);
                    strcpy(gpsNameP[m],gpsPoint);
                    j+=3;m++;
                    if(j<58)continue;
                    else break;
                }
                if(m>=Sp3head.gpsnum)break;
                else
                {    fgets(ch ,62,fp1);
                    for(j =9;m<Sp3head.gpsnum;)
                    {
                        strncpy(gpsPoint,ch+j,3);
                        strcpy(gpsNameP[m],gpsPoint);
                        j+=3;++m;
                        if(j<58)continue;
                        else break;
                    }
                }
               
                if(m>=Sp3head.gpsnum)break;
                else
                {    fgets(ch ,62,fp1);
                    for(j =9;m<Sp3head.gpsnum;)
                    {
                        strncpy(gpsPoint,ch+j,3);
                        strcpy(gpsNameP[m],gpsPoint);
                        j+=3;++m;
                        if(j<58)continue;
                        else break;
                    }
                }
                                                
                if(m>=Sp3head.gpsnum)break;
                else
                {    fgets(ch ,62,fp1);
                    for(j =9;m<Sp3head.gpsnum;)
                    {
                        strncpy(gpsPoint,ch+j,3);
                        strcpy(gpsNameP[m],gpsPoint);
                        j+=3;++m;
                        if(j<58)continue;
                        else break;
                    }
                }

                if(m>=Sp3head.gpsnum)break;
                else
                {    fgets(ch ,62,fp1);
                    for(j =9;m<Sp3head.gpsnum;)
                    {
                        strncpy(gpsPoint,ch+j,3);
                        strcpy(gpsNameP[m],gpsPoint);
                        j+=3;++m;
                        if(j<58)continue;
                        else break;
                    }
                }
就出现问题了。这个好像是堆栈的问题，我很着急，寻大侠指导。

[ 本帖最后由 changyuanjia 于 2013-3-29 11:27 编辑 ]

就是执行了这么一句话之后int * gpsPrecision = new int [Sp3head.gpsnum];就产生了。怎么破？
谢谢。

恩 ，动态为指针分配空间。

额额，什么意思？我是新学C++的，请谅解。