有以下程序#includemain( ){ FILE *fp; int i, a[6] = {1,2,3,4,5,6};fp=fopen( d2.dat , w+ );for(i = 0; i < 6; i++) fprintf(fp, %d n , a[i]);rewind(fp);for(i = 0; i < 6; i++) fscanf(fp, %d n , &a[5 - i]);fclose(fp);for(i = 0; i < 6; i++) printf( %d, , a[i]);}程序运行后的输出结果是
A.4,5,6,1,2,3,
B.1,2,3,3,2,1,
C.1,2,3,4,5,6,
D.6,5,4,3,2,1,