int main(void){unsigned long a,b,c;FILE *fp1,*fp2,*fp3;fp1=fopen("1.txt","rb");fp2=fopen("2.txt","rb");fp3=fopen("3.txt","wb");fread(&a,4,1,fp1);fread(&b,4,1,fp2);c=a+b;fwrite(&c,4,1,fp3);fclose(fp1);fclose(fp2);fclose(fp3);return 0;}
1.txt 的内容是00 0B B8 22
2.txt 的内容是00 05 DC 26
按理来说 3.txt 的内容应该是00 11 94 48
可是运行后 3.txt 的内容却是00 10 94 49
实在是想不明白啊！！！

22 B8 0B 00
26 DC 05 00
+
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貌似懂了。