System.String 转换到 CString

直接 cast 即可

System::String^ s1 = gcnew System::String("How easy!");
CString s = (CString)s1;

 

看 CStringT 的源代码，CStringT 中有一个传入 System String 的构造函数:

// This template will compile only for  
// class SystemString == System::String  
  
#if defined(__cplusplus_cli)  
  
    template <class SystemString>  
    CStringT( SystemString^ pString ) :  
        CThisSimpleString( StringTraits::GetDefaultManager() )  
    {  
        cli::pin_ptr<const System::Char> pChar = PtrToStringChars( pString );  
        const wchar_t *psz = pChar;  
        *this = psz;  
    }  
  
#elif defined(_MANAGED) 

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