First-chance exception in xxx.exe (MSVCRTD.DLL): 0xC0000005: Access Violation问题

[lichen_man]

语句出问题部分是：
......
char path1[100];
FILE* fn;
CString FileName;
CString TFile;
_getcwd(path1,100);
TFile=path1;
FileName=TFile1+"/"+r201696812.ini;
fn=fopen(FileName,"r+");
fscanf(fn,"%d",&Index_Num);
......

设置断点后按F5调试到fopen（）函数时，提示以下错误：
First-chance exception in YiBiao.exe (MSVCRTD.DLL): 0xC0000005: Access Violation
而后跳出错误提示框
Unhandled exception in YiBiao.exe (MSVCRTD.DLL): 0xC0000005: Access Violation
点击确认后出现对话框“Find Source",提示让我输入INPUT.C的路径，但在点击选择过程中又显示"no file by that name was found in this directory."
r201696812.ini文件确定放在该目录下边，请问各位大神，这个问题如何解决？

如果直接运行程序，提示MicroSoft基础类运用程序出错停止工作。。。

[schlafenhamster]

TFile1+"/"+r201696812.ini;
使用· “\\”

[孤客天涯]

FileName的值对吗？你那上面的写法应该有问题吧？

[zgl7903]

文件打开要判断是否成功 TCHAR path[MAX_PATH+1] = {0}; _tgetcwd(path,MAX_PATH); PathAppend(path, _T("r201696812.ini"), FILE* fn = NULL; fn= _tfopen(path, _T("r+")); if(fn != NULL) { fscanf(fn,"%d",&Index_Num); fclose(fn); }