还是字符编码问题
程序代码：#include<stdio.h>
#include<string.h>
#include<malloc.h>
#define uint8_t unsigned __int8
#define uint16_t unsigned __int16
#define uint32_t unsigned __int32
#define uint64_t unsigned __int64
#define int8_t __int8
#define int16_t __int16
#define int32_t __int32
int unicode_to_utf8(uint16_t *in, int insize, uint8_t **out)
{
int i = 0;
int outsize = 0;
int charscount = 0;
uint8_t *result = NULL;
uint8_t *tmp = NULL;
charscount = insize / sizeof(uint16_t);
result = (uint8_t *)malloc(charscount * 3 + 1);
memset(result, 0, charscount * 3 + 1);
tmp = result;
for (i = 0; i < charscount; i++)
{
uint16_t unicode = in[i];
if (unicode >= 0x0000 && unicode <= 0x007f)
{
*tmp = (uint8_t)unicode;
tmp += 1;
outsize += 1;
}
else if (unicode >= 0x0080 && unicode <= 0x07ff)
{
*tmp = 0xc0 | (unicode >> 6);
tmp += 1;
*tmp = 0x80 | (unicode & (0xff >> 2));
tmp += 1;
outsize += 2;
}
else if (unicode >= 0x0800 && unicode <= 0xffff)
{
*tmp = 0xe0 | (unicode >> 12);
tmp += 1;
*tmp = 0x80 | (unicode >> 6 & 0x00ff);
tmp += 1;
*tmp = 0x80 | (unicode & (0xff >> 2));
tmp += 1;
outsize += 3;
}
}
*tmp = '\0';
*out = result;
return 0;
}
int utf8_to_unicode(uint8_t *in, uint16_t **out, int *outsize)
{
uint8_t *p = in;
uint16_t *result = NULL;
int resultsize = 0;
uint8_t *tmp = NULL;
result = (uint16_t *)malloc(strlen(in) * 2 + 2);
memset(result, 0, strlen(in) * 2 + 2);
tmp = (uint8_t *)result;
while(*p)
{
if (*p >= 0x00 && *p <= 0x7f)
{
*tmp = *p;
tmp++;
*tmp = '\0';
resultsize += 2;
}
else if ((*p & (0xff << 5))== 0xc0)
{
uint16_t t = 0;
uint8_t t1 = 0;
uint8_t t2 = 0;
t1 = *p & (0xff >> 3);
p++;
t2 = *p & (0xff >> 2);
*tmp = t2 | ((t1 & (0xff >> 6)) << 6);//t1 >> 2;
tmp++;
*tmp = t1 >> 2;//t2 | ((t1 & (0xff >> 6)) << 6);
tmp++;
resultsize += 2;
}
else if ((*p & (0xff << 4))== 0xe0)
{
uint16_t t = 0;
uint8_t t1 = 0;
uint8_t t2 = 0;
uint8_t t3 = 0;
t1 = *p & (0xff >> 3);
p++;
t2 = *p & (0xff >> 2);
p++;
t3 = *p & (0xff >> 2);
*tmp = ((t2 & (0xff >> 6)) << 6) | t3;
tmp++;
*tmp = (t1 << 4) | (t2 >> 2);
tmp++;
resultsize += 2;
}
p++;
}
*tmp = '\0';
tmp++;
*tmp = '\0';
resultsize += 2;
*out = result;
*outsize = resultsize;
return 0;
}
void dump_utf8(uint8_t *utf8)
{
uint8_t *p = utf8;
while(*p)
{
printf("%02X", *p);
p++;
}
putchar('\n');
}
void dump_unicode(uint16_t *utf16, int size)
{
uint8_t *p = (uint8_t *)utf16;
int i = 0;
for (i = 0; i < size; i++)
{
printf("%02X", *p);
p++;
}
putchar('\n');
}
/*void main()
{
FILE *fp;
int i;
char str[100];
fp=fopen("zhang.txt","wt");
printf("请输入字符：\n");
gets(str);
for(i=0;str[i]&&i<100;i++) // for(i=0;i<100;i++) 有bug
fputc(str[i],fp);
fclose(fp);
/* fp=fopen("zhang.txt","r");
fgets(str,100,fp);
printf("%s\n",str);
fclose(fp);*/
/* printf("%s\n",str);
printf("%d\n",str);
printf("%x\n",str);
printf("%o\n",str);
fclose(fp);
}
*/
int main()
{
uint16_t unicode[] = '我';
uint8_t *utf8 = NULL;
int unisize = 0;
uint16_t *uni = NULL;
printf("original unicode: \n");
dump_unicode(unicode, sizeof(unicode));
printf("converted to utf8: \n");
unicode_to_utf8(unicode, sizeof(unicode), &utf8);
dump_utf8(utf8);
printf("converted to unicode: \n");
utf8_to_unicode(utf8, &uni, &unisize);
dump_unicode(uni, unisize);
free(utf8);
free(uni);
return 0;
} 帮忙看看，指点一下
