哪些庫用於C++窗口窗體中的StreamWriter？

Question

public ref class form : public System::Windows::Forms::Form 
{ 
public: 

    form(void) 
    { 
     InitializeComponent(); 
     void save(String^ word); 

    } 
    //windows form generated code 
    ... 
    ... 
    ... 
    void save(String^ word) 
    { 
     StreamWriter^ outFile = gcnew StreamWriter("file.txt"); 
     outFile->WriteLine(word); 
     outFile->Close(); 
    } 
    #pragma endregion 

private: 

    System::Void button00_Click(System::Object^ sender, System::EventArgs^ e) 
    { 
     String^ word = "PLOW"; 
     save(word); 
    } 
}; 
} 

Answer 1

StreamWriter駐留在命名空間System :: IO中，並在mscorlib.dll中實現。只要

using namespace System::IO

行添加到您的代碼文件的導入，你準備好去。