cstring to char *例子

    Cstring m_strDescPath = "";        //类的成员变量

    //"打开文件"对话框，选择文件，返回其路径
    m_strDescPath = BootOpenDialog();
//这里的目的是将Cstring m_strDescPath 转为char *ptxtTemp 供后面使用
    int len = WideCharToMultiByte(CP_ACP, , m_strDescPath, -, NULL, , NULL, NULL);
    char *ptxtTemp = new char[len + ];
    WideCharToMultiByte(CP_ACP, , m_strDescPath, -, ptxtTemp, len, NULL, NULL);

    ReadXmlFile(ptxtTemp);