输入从键盘到文本文件在c??代码编译但是*EOF*不工作?

#include <stdio.h>
int main ()
{
  FILE * pFile;
  char ch;
  pFile = fopen ("G:\ IJLAL.txt","w+");
  while((ch = getchar())!=EOF)
    putc(ch,pFile);
  fclose(pFile);
  return 0;
}
#include <stdio.h>
int main ()
{
  FILE * pFile