VC++字符类型转换.docxVIP

DWORD型的数据转换成CString型CString str；DWORD dwValue = 121212;str.Format(%d,dwValue)2.CString型转_bstr_t CString strip=”HHHHHE”;_bstr_t pt;Pt= (_bstr_t)stripm_string.SetReadOnly();CString str_data;int len = m_string.LineLength();m_string.GetLine(0,str_data.GetBuffer(len), len);str_data.ReleaseBuffer(len);如果想把编辑框的文本转化为int型，只需调用函数atoi，如下所示：int num = atoi(str_data);则num中保存的就是int型的数据。3.int转charint senid;for(senid=1;senid161;senid++)char id[20]; sprintf(id, %d ,senid);strcat(nprocedure_id,(char *)id);4.将CString-char[] char* CString str;Char pp[20];strcpy(pp,str.GetBuffer(0)); 5.将ltime 转CStringCString strTime；m_CurTime = CTime::GetCurrentTime();strTime = m_CurTime.Format(%Y-%m-%d %H:%M:%S);1》string转wstringwstring s2ws(const string s){_bstr_t t = s.c_str();wchar_t* pwchar = (wchar_t*)t;wstring result = pwchar;return result;}2》wstring转stringstring ws2s(const wstring ws){_bstr_t t = ws.c_str();char* pchar = (char*)t;string result = pchar;return result;}3》string转cstring?a）CString.format(%s, string.c_str()); ??b）CString StringToCString(string str){CString result;for (int i=0;i(int)str.length();i++){?result+=str[i];}return result;}?4》cstring转stringa）void ConvertCString2string(CString strSrc,std::string strDes){#ifndef UNICODEstrDes = strSrc;#else USES_CONVERSION;strDes = W2A(strSrc.LockBuffer());strSrc.UnlockBuffer();#endif}b）string s(CString.GetBuffer()); ?ReleaseBuffer()；GetBuffer()后一定要ReleaseBuffer(),否则就没有释放缓冲区所占的空间.c）string CStringToString(CString cstr){string result(cstr.GetLength(),e);for (int i=0;icstr.GetLength();i++){?result[i]=(char)cstr[i];}return result;}5》string转char *a）char *p = string.c_str(); 举例： string aa(aaa); char *c=aa.c_str(); string mngName； char t[200]; memset(t,0,200); strcpy(t,mngName.c_str());b）一个一个字符的赋值?char *p = new char[sring的长度+1];p[string的长度]=/0;但是要注意最后赋值/0!!!?char * StringToChar(string str){int len=str.length();char * p= new char[len+1];for (int i=0;ilen;i++){p[i]=str[i];}p[len]=/0;}6》char* 转stringstring s(char *); 你的只能初始化，在不是初始化的地方最好还是用a