iconv函数族的头文件是iconv.h,使用前需包含之。OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#include <iconv.h>OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
iconv函数族有三个函数,原型如下:OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
(1) iconv_t iconv_open(const char *tocode, const char *fromcode);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
此函数说明将要进行哪两种编码的转换,tocode是目标编码,fromcode是原编码,该函数返回一个转换句柄,供以下两个函数使用。OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
(2) size_t iconv(iconv_t cd,char **inbuf,size_t *inbytesleft,char **outbuf,size_t *outbytesleft);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
此函数从inbuf中读取字符,转换后输出到outbuf中,inbytesleft用以记录还未转换的字符数,outbytesleft用以记录输出缓冲的剩余空间。 (3) int iconv_close(iconv_t cd);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
此函数用于关闭转换句柄,释放资源。OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
例子1: 用C语言实现的转换示例程序OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
/* f.c : 代码转换示例C程序 */OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#include <iconv.h>OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#define OUTLEN 255OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
main()OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
{OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char *in_utf8 = "姝e?ㄥ??瑁?";OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char *in_gb2312 = "正在安装";OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char out[OUTLEN];OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
//unicode码转为gb2312码OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
rc = u2g(in_utf8,strlen(in_utf8),out,OUTLEN);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
printf("unicode-->gb2312 out=%sn",out);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
//gb2312码转为unicode码OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
rc = g2u(in_gb2312,strlen(in_gb2312),out,OUTLEN);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
printf("gb2312-->unicode out=%sn",out);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
//代码转换:从一种编码转为另一种编码OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int code_convert(char *from_charset,char *to_charset,char *inbuf,int inlen,char *outbuf,int outlen)OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
{OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
iconv_t cd;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int rc;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char **pin = &inbuf;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char **pout = &outbuf;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cd = iconv_open(to_charset,from_charset);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
if (cd==0) return -1;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
memset(outbuf,0,outlen);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
if (iconv(cd,pin,&inlen,pout,&outlen)==-1) return -1;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
iconv_close(cd);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
return 0;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
//UNICODE码转为GB2312码OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int u2g(char *inbuf,int inlen,char *outbuf,int outlen)OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
{OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
return code_convert("utf-8","gb2312",inbuf,inlen,outbuf,outlen);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
//GB2312码转为UNICODE码OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int g2u(char *inbuf,size_t inlen,char *outbuf,size_t outlen)OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
{OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
return code_convert("gb2312","utf-8",inbuf,inlen,outbuf,outlen);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
例子2: 用C++语言实现的转换示例程序OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
/* f.cpp : 代码转换示例C++程序 */OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#include <iconv.h>OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#include <iostream>OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
#define OUTLEN 255OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
using namespace std;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// 代码转换操作类OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
class CodeConverter {OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
private:OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
iconv_t cd;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
public:OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// 构造OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
CodeConverter(const char *from_charset,const char *to_charset) {OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cd = iconv_open(to_charset,from_charset);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// 析构OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
~CodeConverter() {OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
iconv_close(cd);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// 转换输出OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int convert(char *inbuf,int inlen,char *outbuf,int outlen) {OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char **pin = &inbuf;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char **pout = &outbuf;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
memset(outbuf,0,outlen);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
return iconv(cd,pin,(size_t *)&inlen,pout,(size_t *)&outlen);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
};OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
int main(int argc, char **argv)OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
{OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char *in_utf8 = "姝e?ㄥ??瑁?";OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char *in_gb2312 = "正在安装";OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
char out[OUTLEN];OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// utf-8-->gb2312OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
CodeConverter cc = CodeConverter("utf-8","gb2312");OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cc.convert(in_utf8,strlen(in_utf8),out,OUTLEN);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cout << "utf-8-->gb2312 in=" << in_utf8 << ",out=" << out << endl;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
// gb2312-->utf-8OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
CodeConverter cc2 = CodeConverter("gb2312","utf-8");OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cc2.convert(in_gb2312,strlen(in_gb2312),out,OUTLEN);OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
cout << "gb2312-->utf-8 in=" << in_gb2312 << ",out=" << out << endl;OC/-4F-]&MmT,fYu<HQgWsnC'PT1n2!W$};88JBs>l*u9V/;zJwbc7HP2J0pa8?sf.F#pu本文来自:V电G玩S天K空Y
}


