C语言:有两个磁盘文件"A.txt"和"B.txt",各放一行字母,今要求把两个文件...答:FILE *fp1;FILE *fp2;FILE *fp3;char str2[128];fp1=fopen("a.txt","r");fp2=fopen("b.txt","r");fp3=fopen("c.txt","w");fscanf(fp1,"%s",str2);fprintf(fp3,"%s",str2);fscanf(fp2,"%s",str2);fprintf(fp3,"%s",str2);fclose(fp1);fclose(fp2);fclose(fp3);