通过mfc 读写文本文件的中文乱码的解决方法

前提：VS2010 ,MFC ,文本文件为ANSI格式。

读文件：

CString str,fileContent;
CStdioFile myFile, File;
if(myFile.Open(GeneralUtils::GetModuleDir()+_T(\\mx.txt), CFile::modeRead))
{
 //读取
 while(myFile.ReadString(str))
 {
  str = str + _T("\n");
  ReadStringCharToUnicode(str);
  fileContent = fileContent + str;
 }
 myFile.Close();
}

写文件：

*.h

#include

*.cpp

setlocale(LC_CTYPE,"chs");
myFile.Open(GeneralUtils::GetModuleDir()+_T(\\mx2.txt), CFile::modeWrite | CFile::modeCreate); 
myFile.WriteString(fileContent);
myFile.Close();

方法

void ReadStringCharToUnicode(CString &str)
{
 char *szBuf = new char[str.GetLength() + 1];//注意“+1”，char字符要求结束符，而CString没有
 memset(szBuf, '\0',str.GetLength());
 
 int i;
 for ( i = 0 ; i < str.GetLength(); i++)
 {
  szBuf[i] = (char)str.GetAt(i);
 }
 szBuf[i] = '\0';//结束符。否则会在末尾产生乱码。
 
 int nLen;
 WCHAR *ptch;
 CString strOut;
 if(szBuf == NULL)
 {
  return ;
 }
 nLen = MultiByteToWideChar(CP_ACP, 0, szBuf, -1, NULL, 0);//获得需要的宽字符字节数
 ptch = new WCHAR[nLen];
 memset(ptch, '\0', nLen);
 MultiByteToWideChar(CP_ACP, 0, szBuf, -1, ptch, nLen);
 str.Format(_T("%s"), ptch);
 
 if(NULL != ptch)
  delete [] ptch;
 ptch = NULL;
 
 if(NULL != szBuf)
  delete []szBuf;
 szBuf = NULL;
 return ;
}