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我是一名C++ - CLI初學者，我必須熟悉一些簡單的事情。 我用1個標籤和1個按鈕製作了一個表格。 我想通過點擊按鈕，並呼籲通過虛空中另一CPP類一些文字（changetext.cpp）更改標籤的文本如何更改「Form.h」外部的文本標籤？
結構：
Form1.h //只是一個普通的用1個標籤和1點按鈕的處理程序在結束形式代碼
#pragma once
namespace ms {
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
/// <summary>
/// Summary for Form1
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}
public:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
public: System::Windows::Forms::Label^ label1;
private: System::Windows::Forms::Button^ button1;
public:
public:
public:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;
#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
this->label1 = (gcnew System::Windows::Forms::Label());
this->button1 = (gcnew System::Windows::Forms::Button());
this->SuspendLayout();
//
// label1
//
this->label1->AutoSize = true;
this->label1->Location = System::Drawing::Point(313, 140);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(35, 13);
this->label1->TabIndex = 0;
this->label1->Text = L"label1";
//
// button1
//
this->button1->Location = System::Drawing::Point(101, 117);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(100, 58);
this->button1->TabIndex = 1;
this->button1->Text = L"button1";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(467, 262);
this->Controls->Add(this->button1);
this->Controls->Add(this->label1);
this->Name = L"Form1";
this->Text = L"Form1";
this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);
this->ResumeLayout(false);
this->PerformLayout();
}
#pragma endregion
public: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {
}
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
changetext my = new changetext();
my.changeText();
}
};
}
ms.cpp（主）//僅創建形式
// ms.cpp : main project file.
#include "stdafx.h"
#include "Form1.h"
using namespace ms;
[STAThreadAttribute]
int main(array<System::String ^> ^args)
{
// Enabling Windows XP visual effects before any controls are created
Application::EnableVisualStyles();
Application::SetCompatibleTextRenderingDefault(false);
// Create the main window and run it
Application::Run(gcnew Form1());
return 0;
}
changetext.cpp
#include "stdafx.h"
#include "Form1.h"
int number;
void changeText()
{
number = 5;
Form1.label1->Text=number;
}
我想提出一個小錯誤的地方，我想它與頭文件的事，我已經習慣了的代碼在java中這樣headerfiles不是我的那杯茶然而。
「Form1」是*類型名稱*，不是變量tha t引用表單對象，因此可以訪問其名爲「label1」的實例成員。一定要區分類和對象，大多數關於面向對象編程的書應該是有用的閱讀。 –
然後，從「Form1.h」調用「label1」的正確方法是什麼？ – DauchoT