#include <stdio.h>
#include <stdlib.h>
int main()
{
FILE* pf;
char* s1 = "China", * s2 = "Beijing";
pf = fopen("abc.dat", "wb+");
fwrite(s2, 7, 1, pf);
rewind(pf);
fwrite(s1, 5, 1, pf);
fclose(pf);
return 0;
}
执行后abc.dat文件的内容是什么,怎么查看abc.dat文件的内容?