将两首音乐合成一首

#include<stdio.h>
#include<stdlib.h>
#define M1 "D:/music1.mp3"          //第一个音乐文件 两个音乐文件改好名后放在D盘根目录
#define M2 "D:/music2.mp3"          //第二个音乐文件
#define M3 "D:/music3.mp3"          //合并后的音乐文件
void merge_music(const char *name1, const char *mode1, const char *name2, const char *mode2)
{
    FILE*fp1 = fopen(name1, mode1);
    FILE*fp2 = fopen(name2, mode2);
    FILE*fp3 = fopen(M3,"wb");
    if (NULL == fp1 || NULL == fp2)
    {
        printf("Can not open file.\n");
        exit(0);
    }
    while (!feof(fp1))
    {
        fputc(fgetc(fp1), fp3);
    }
    while (!feof(fp2))
    {
        fputc(fgetc(fp2), fp3);
    }
    fclose(fp1);
    printf("length of music3.mp3:%d\n", ftell(fp3));
    fclose(fp2);
    fclose(fp3);
}
int main()
{
    merge_music(M1, "rb",M2 , "rb");
    return 0;
}