依然是菜鸟，依然问问题.......

[wangsiyuanoo]

wstring CLuaProgramNode::GetLuaNodeString( int iId, wstring sValue)
{
	wstring str;

	int iPropertyId = iId;               
	wstring sPropertyValue = sValue;   

	if (sPropertyValue != "") // error C2678: binary '!=' : no operator found which takes a left-hand operand of type 'std::wstring' (or there is no acceptable conversion)
	{
		wsprintf(str, L"{%d/%s}", iPropertyId, sPropertyValue); //error C2664: 'wsprintfW' : cannot convert parameter 1 from 'std::wstring' to 'LPWSTR'
	}

	return str;
}

这两个问题怎么解决呢？？？

要求必须返回wstring，不能用CString中的Format函数来代替。

求解决办法！！！！！！！！！！

[hhyttppd]

if (sPropertyValue != L"") // error C2678: binary '!=' : no operator found which takes a left-hand operand of type 'std::wstring' (or there is no acceptable conversion)
{
wsprintf(str, L"{%d/%s}", iPropertyId, sPropertyValue.c_str()); //error C2664: 'wsprintfW' : cannot convert parameter 1 from 'std::wstring' to 'LPWSTR'
}

[wangsiyuanoo]

[Quote=引用 1 楼 hhyttppd 的回复:]
if (sPropertyValue != L"") // error C2678: binary '!=' : no operator found which takes a left-hand operand of type 'std::wstring' (or there is no acceptable conversion)
{
wsprintf(str, L"{%d/%s}", iPropertyId, sPropertyValue.c_str()); //error C2664: 'wsprintfW' : cannot convert parameter 1 from 'std::wstring' to 'LPWSTR'
}
[/Quote]
第一个解决了
第二个还是不行...error C2664: 'wsprintfW' : cannot convert parameter 1 from 'std::wstring' to 'LPWSTR'

[tianjiao85]

up

[旋风猴]

wstring GetLuaNodeString( int iId, wstring sValue)
{
wstring str;

int iPropertyId = iId;
wstring sPropertyValue = sValue;
//sValue.substr
if (!sPropertyValue.empty())
{
wchar_t buf[128];
_itow_s(iId,buf,sizeof(buf),10);
str.append(buf);
str.append(sPropertyValue);
}

return str;
}