目录

CString转char *

char *转CString

string转char *

char *转string

CString转string

string转CString

在mfc中，char* ，CString，string之间的转换是使用非常频繁的，这里参考了网上的许多方法，这里做一个总结

CString转char *

void CString_to_chars()
{
	char ch[256];
	CString cs = _T("this is test CString_to_chars");
	
#ifndef  UNICODE
	int str_len = cs.GetLength();
	char *buf = cs.GetBuffer(str_len);
	memcpy(ch, buf, str_len);
	ch[str_len] = '\0';
	cs.ReleaseBuffer();
#else
	int len = WideCharToMultiByte(CP_ACP, 0, cs, -1, NULL, 0, NULL, NULL);//m_csFileName.GetLength()	
	WideCharToMultiByte(CP_ACP, 0, cs, -1, ch, len, NULL, NULL);
	ch[len + 1] = '\0';
#endif
	printf("%s\n", ch);
}

char *转CString

void chars_to_CString()
{
	CString cs;
	const char *ch = "this is test chars_to_CString";
	const char ch2[] = "this is test chars_to_CString";

	cs = ch;
	//cs = ch2;
	//cWnd->SetDlgItemText(IDC_EDIT_CSTRING_OUTPUT, cs);
}

string转char *

void string_to_chars()
{
	string ss = "this is test string_to_chars";
	char ch[256];
	memcpy(ch, ss.c_str(), ss.length() + 1);
	printf("%s\n", ch);
}

char *转string

void chars_to_string()
{
	string ss;
	const char *ch = "this is test chars_to_string";
	const char ch2[] = "this is test chars_to_string";
	ss = ch;
	//ss = ch2;
	cout << ss << endl;
}

CString转string

void CString_to_string()
{
	string ss;
	CString cs = _T("this is test CString_to_string");
	
#if 1	//方法一
	ss = CT2A(cs.GetString());
#else	//方法二
	#ifndef  UNICODE
		ss = CA2A(cs.GetString());
	#else
		ss = CW2A(cs.GetString());
	#endif
#endif
	cout << ss << endl;
}

string转CString

void string_to_CString()
{
	string ss = "this is test string_to_CString";
	CString cs;
#if 1	//方法一
	cs = CA2T(ss.c_str());
#else	//方法二
	#ifndef  UNICODE
		cs = CA2A(ss.c_str());
	#else
		cs = CA2W(ss.c_str());
	#endif
#endif
        //cWnd->SetDlgItemText(IDC_EDIT_CSTRING_OUTPUT, cs);
}

其他的还有char转int，string转int等等，相关资料包括demo代码请到我<MFC实用技巧>篇最下的网盘链接中下载！