10Â¥: Originally posted by libralibra at 2012-07-07 19:25:28
ÕâλÐÖµÜÀ÷º¦,¶¼½âÃܳöÀ´ÁË
Ææ¹ÖûËã·¨ÄãÕ¦½âµÄ?...

#include
#include
#include

int trans(int in)
{
        if(in >= '0' && in <= '9')
                return in + 4;
        if(in >= 'a' && in <= 'z')
                return in - 0x47;
        if(in >= 'A' && in <= 'Z')
                return in - 0x41;
        if(in == '+')
                return '>';
        if(in == '/')
                return '?';
        return -1;
}

int main()
{
        FILE * fpi, *fpo;
        int i, k, j, filelen, outlen = 0;
        char *inbuf,*outbuf, *h, *in;
        short *out, n;
        fpi = fopen("in","rb+");
        fpo = fopen("out","wb+");
        fseek(fpi,0,SEEK_END);
        filelen = ftell(fpi);
        inbuf = malloc(filelen);
        outbuf = malloc(filelen);
        fseek(fpi,0,SEEK_SET);
        fread(inbuf,1, filelen, fpi);
        in = inbuf;
        inbuf += 6;
        while(*inbuf) {
                for(i = 0, k = 0; i < 4 && *inbuf; inbuf++){
                        j = trans(*inbuf);
                        if(j == -1){
                                continue;
                        }
                        k = k << 6;
                        k |= j;
                        i++;
                }
                i = 3;
                h = (char *)&k;
                while(i--) {
                        outbuf[outlen++] = h[i];
                }
        }
        while(!outbuf[--outlen]);
        out = (short *)outbuf;
        outlen = (--outlen >> 1);
        n = out[outlen];
        out[outlen] = 0;
        while(*out) {
                *out++ -= n;
        }
        k = 0xfeff;
        fwrite((char *)&k,2,1,fpo);
        fwrite(outbuf,2,outlen,fpo);
        fclose(fpi);
        fclose(fpo);
        free(in);
        free(outbuf);
        return 0;
}

12Â¥: Originally posted by anntoy at 2012-07-08 02:56:28
ÏÂÃæÊǽâÂëµÄc´úÂ룬½âÂëºóÊÇunicode¸ñʽ£¬Èç¹ûҪת»»³Éutf-8×Ô¼º×ª°É
Ëã·¨ÊǸöʲôÃû×Ö²»ÖªµÀ£¬Äã¿ÉÒÔ×Ô¼º¿´¿´ÊÇʲôËã·¨£¬±àÂë¹ý³Ì»¹ÖªµÀ

#include <stdio.h>
#include <stdlib.h>
#include &l ...

13Â¥: Originally posted by wolflash at 2012-07-09 17:09:55
ÄÜ·ñŒ¢unicode¸ñʽת»»³Éutf-8 µÄC´ú´aÒ²ÙN³ö?í¹þ£¬ÎÒÏë¿´¿´£¬ÖxÀ²...

14Â¥: Originally posted by anntoy at 2012-07-09 21:41:10
ÄǸö¾ÍµÃ²é±íÁË£¬ÄãÖ±½ÓÓüÇʱ¾´ò¿ª£¬Áí´æΪ£¬Ñ¡Ôñutf-8²»¾Í¿ÉÒÔÁË£¬Ð´Ê²Ã´³ÌÐòѽ...

15Â¥: Originally posted by wolflash at 2012-07-09 22:14:44
µ«ÊÇ߀ÊÇÒ»¶ÑµÄÖÐÎÄ×Ö£¬ºÜÆæ¹Ö£¬ÞD²»ÁË...

16Â¥: Originally posted by anntoy at 2012-07-09 22:16:36
ßÀ¡­¡­¸Õ¿´ÁËÕâ¸öתÂ뻹ÊDZȽϼòµ¥µÄ£¬ÎÒдд¿´°¡...

16Â¥: Originally posted by anntoy at 2012-07-09 22:16:36
ßÀ¡­¡­¸Õ¿´ÁËÕâ¸öתÂ뻹ÊDZȽϼòµ¥µÄ£¬ÎÒдд¿´°¡...

18Â¥: Originally posted by wolflash at 2012-07-09 22:37:55
06ÄêŒWß^C++£¬ÄÇ•r¿¼Ô‡¶¼µÃƒžÐãµÄ£¬ß@üN¶àÄ꣬ÍüµÃ²î²»¶àÁË¡£...

#include
#include
#include

int main()
{
        FILE * fpi, *fpo;
        int filelen, outlen = 0;
        unsigned short *inbuf, *in, i;
        char *outbuf;
        fpi = fopen("in","rb+");
        fpo = fopen("out","wb+");
        fseek(fpi,0,SEEK_END);
        filelen = ftell(fpi);
        inbuf = malloc(filelen);
        outbuf = malloc(filelen);
        fseek(fpi,0,SEEK_SET);
        fread(inbuf,1, filelen, fpi);
        in = inbuf;
        inbuf++;
        outbuf[outlen++] = (char)0xef;
        outbuf[outlen++] = (char)0xbb;
        outbuf[outlen++] = (char)0xbf;
        while(i = *inbuf++) {
                if(i < 0x80) {
                        outbuf[outlen++] = (char)i;
                } else if(i >= 0x80 && i < 0x800) {
                        outbuf[outlen++] = 0xc0 | (char)(i>>6);
                        outbuf[outlen++] = 0x80 | (char)(i & 0x3f);
                } else if(i >= 0x800) {
                        outbuf[outlen++] = 0xe0 | (char)(i>>12);
                        outbuf[outlen++] = 0x80 | (char)((i & (0x3f<<6))>>6);
                        outbuf[outlen++] = 0x80 | (char)(i & 0x3f);
                }
        }
        fwrite(outbuf,1,outlen,fpo);
        fclose(fpi);
        fclose(fpo);
        free(in);
        free(outbuf);
        return 0;
}

15Â¥: Originally posted by wolflash at 2012-07-09 22:14:44
µ«ÊÇ߀ÊÇÒ»¶ÑµÄÖÐÎÄ×Ö£¬ºÜÆæ¹Ö£¬ÞD²»ÁË...