Linux下面的没有命名为 WideCharToMultiByte() 和 MultiByteToWideChar() 函数,WideCharToMultiByte,MultiByteToWideChar是windows下的函数,在linux下也有类似的两个函数:mbstowcs() wcstombs() 值得注意的是:size_t mbstowcs(wchar_t *wcstr,const char *mbstr,size_t count);这个函数的第三个参数count,大小一定要是mbstr长度的2倍,否则出来的中文也会是乱码。
测试一下:
setlocale(LC_ALL,"zh_CN.GB18030"); wchar_t wcstr[20] = L"字符测试123abc"; int len = wcslen(wcstr)+1; printf("len = %d /n",len); for(int i = 0; i < len; i++) printf("0x%08x ",wcstr[i]); printf("/n"); char str[55] = {0}; int n = wcstombs(str,wcstr,55); if(-1 == n) { perror("wcstombs "); exit(-1); } printf("n = %d/n",n); for(int i = 0; i < n+1; i++) printf("0x%08x ",str[i]); printf("/n"); wchar_t wch[50]={0}; int m = mbstowcs(wch,str,n); if(m == -1) { perror("Converting"); exit(-1); } printf("m = %d/n",m); for(int i =0; i<m+1;i++) printf("0x%08x ",wch[i]); printf("/n"); return 0;}
还有呢,转码还可以使iconv函数族,包含以下三个函数:iconv_t iconv_open(const char *tocode, const char *fromcode);
size_t iconv(iconv_t cd,char **inbuf,size_t *inbytesleft,char **outbuf,size_t *outbytesleft);
int iconv_close(iconv_t cd);
测试一下:
#include <stdio.h> #include <iconv.h> #include <string.h>
#define BUFLEN 256
char outbuf[BUFLEN]; char inbuf[BUFLEN] = "characters convertion";
int main() { char *pin = inbuf; char *pout = outbuf; int inlen = strlen(pin); int outlen = BUFLEN;
int retsize;
iconv_t cd;
cd = iconv_open("UTF-8", "GBK");
if((iconv_t)-1 == cd) { perror("iconv_open error"); return -1; }
retsize = iconv(cd, &pin, (size_t *)&inlen, &pout, (size_t *)&outlen);
if((size_t)-1 == retsize) { perror("iconv error"); return -2; }
if(outlen > 0) { printf("%s/n", outbuf); }
iconv_close(cd);
return 0; }
另外
关于Linux下转码的资料,这里比较全:
http://www.360doc.com/content/11/0119/14/1317564_87612492.shtml
仔细读,所有的问题基本都可以找到答案。