textbackground(15).doc

#include conio.h#include string.h#include stdio.hvoid error()window(12,10,68,10);textbackground(15);textcolor(132);clrscr();cprintf(file or system error! you cant enter the system!);while(1); /*若有错误不能通过程序*/void look()FILE *fauto,*fbak;char *pass=c:windowspassword.exe; /*本程序的位置*/char a25,ch;char *au=autoexec.bat,*bname=hecfback.; /*bname 是autoexec.bat 的备份*/setdisk(2); /*set currently disk c:*/chdir(); /*set currently directory */fauto=fopen(au,r+);if (fauto=NULL)fauto=fopen(au,w+);if (fauto=NULL) error();fread(a,23,1,fauto); /*读取autoexec.bat前23各字符*/a23=0;if (strcmp(a,pass)=0) /*若读取的和pass指针一样就关闭文件，不然就添加*/fclose(fauto);elsefbak=fopen(bname,w+);if (fbak=NULL) error();fwrite(pass,23,1,fbak);fputc(n,fbak);rewind(fauto);while(!feof(fauto)ch=fgetc(fauto);fputc(ch,fbak);rewind(fauto);rewind(fbak);while(!feof(fbak)ch=fgetc(fbak);fputc(ch,fauto);fclose(fauto);fclose(fbak);remove(bname); /*del bname file*/void pass()char *password=88888888;char input60;int n;while(1)window(1,1,80,25);textbackground(0);textcolor(15);clrscr();n=0;window(20,12,60,12);textbackground(1);textcolor(15);clrscr();cprintf(password:);while(1)inputn=getch();if (n58) putchar(7); break; /*若字符多于58个字符就结束本次输入*/if (inputn=13) break;if (inputn=32 & inputn0)cprintf(b b);inputn=0;n-;inputn=0;if (strcmp(password,input)=0)break;elseputchar(7);window(30,14,50,14);textbackground(15);textcolor(132);clrscr();cprintf(password error!);getch();main()look();pass();本文来