获取文件的字节数

#include <stdio.h>
#include <stdlib.h>

int getSumBytes(const char *strFileName)
{
    FILE *fp = fopen(strFileName,"r");
    fseek(fp,0,SEEK_END);
    int result = ftell(fp);
    fclose(fp);
    return result;
}
int main()
{
    char *strFileName;
    printf("请输入你要查看文件大小的地址:");
    scanf("%s",strFileName);
    printf("文件大小为%d个字节\n",getSumBytes(strFileName));
    return 0;
}