C++/CLI Tracking Handler 传参问题
正在学C++/CLI,遇到个问题？

using namespace System;
//using namespace System::Text::RegularExpressions;


void AddParameter(String^ line)
{
line += "7 ";
}


int main(array <String^> ^ argv)
{
String^ line = gcnew String( "123456 ");
Console::WriteLine( "Operatin before AddParameter function is {0} ",line);

AddParameter(line);

Console::WriteLine( "Operatin after AddParameter function is {0} ",line);

line+= "8 ";

Console::WriteLine(line);

return 0;
}


为什line值不是 12345678

[解决办法]
string 特殊性