C++.NET If Then Else 范例 - JBTALKS.CC

这里可以不要看，GUI来的
#pragma once
namespace FirstCPPProject {
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
///
/// WARNING: If you change the name of this class, you will need to change the
/// 'Resource File Name' property for the managed resource compiler tool
/// associated with all .resx files this class depends on. Otherwise,
/// the designers will not be able to interact properly with localized
/// resources associated with this form.
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}
protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Label^ label1;
protected:
private: System::Windows::Forms::TextBox^ textBox1;
private: System::Windows::Forms::Button^ button1;
private: System::Windows::Forms::Label^ label2;
private:
/// <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->textBox1 = (gcnew System::Windows::Forms::TextBox());
this->button1 = (gcnew System::Windows::Forms::Button());
this->label2 = (gcnew System::Windows::Forms::Label());
this->SuspendLayout();
//
// label1
//
this->label1->AutoSize = true;
this->label1->Location = System::Drawing::Point(12, 17);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(56, 13);
this->label1->TabIndex = 0;
this->label1->Text = L"Password:";
//
// textBox1
//
this->textBox1->Location = System::Drawing::Point(74, 14);
this->textBox1->Name = L"textBox1";
this->textBox1->PasswordChar = '●';
this->textBox1->Size = System::Drawing::Size(117, 20);
this->textBox1->TabIndex = 1;
//
// button1
//
this->button1->Location = System::Drawing::Point(197, 12);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(75, 23);
this->button1->TabIndex = 2;
this->button1->Text = L"Login";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
//
// label2
//
this->label2->AutoSize = true;
this->label2->Location = System::Drawing::Point(13, 34);
this->label2->Name = L"label2";
this->label2->Size = System::Drawing::Size(35, 13);
this->label2->TabIndex = 3;
this->label2->Text = L"label2";
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(284, 48);
this->Controls->Add(this->label2);
this->Controls->Add(this->button1);
this->Controls->Add(this->textBox1);
this->Controls->Add(this->label1);
this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::FixedSingle;
this->MaximizeBox = false;
this->Name = L"Form1";
this->Text = L"Login";
this->ResumeLayout(false);
this->PerformLayout();
}
#pragma endregion
//这里就是 If Then Else 的部分
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
if(textBox1->Text == "password")
{
label2->Text = "Correct Password!";
}else{
label2->Text = "Incorrect Password!";
}
}
};
}

复制代码