计算机技术及计算机语言

指出并写出正确的代\r码:\r(2)分别写出函数main(…)、Fc(…)和display(•••)的功能。\r1./*文件名:Fc.c*/\rftinclude\rttinclude\rdefineSIZE128\rvoiddisplay(int);\rvoidFc(char*,char*);\rmain(intargc,charargv[]){\rintk,sect,No;\rcharbuf[128];\rFILE*fpl;\rIf(argc<=2){\rPrintf("Usage:FcFlF2F3\n");\rfpl=fopen(argv[l],vr");\rdo{\rsect=-l;\rprintf("EnterSector:v;\rscanf("%ld”,sect);\rif(sect>=0){\rif(fseek(fpl,sect*SIZE,0)>=0){\rNo=fread(buf,sizeof(char),SIZE,fpl);\rIf(No>0)display(No);\r}while(sect>=0);\rfclose(fpl);\r)\r2.VoidFc(char*target,char*source){\rFILE*fpl,*fp2;\rIf((fpl=fopen(source,vrv))=NULL)\rexit(1);\rIf((fp2=fopen(source,r"))=NULL)\rexit(1);\rwhile(fgets(buffer,80,fp2))\rfputs(buffer,fpl);\rfclose(fpl);fclose(fp2);\r)\rvoiddisplay(intNo){\rinta,b;\rfor(a=0;afor(b=0;b<16;b++){\rif(a*16+bprintf("%3x”,buf[a*16+b]);\r)