写一个fwrite写入二进制文件

#include <stdio.h>

int main() {
FILE *fp;
int arr[] = {1, 2, 3, 4, 5};
int size = sizeof(arr) / sizeof(int);

fp = fopen("output.bin", "wb");
if (fp == NULL) {
printf("Failed to open file.\n");
return 1;
}

fwrite(arr, sizeof(int), size, fp);

fclose(fp);

return 0;
}