Visual c++ 函数Conver.ToDouble,它有一个错误
返回转换时出现的错误: 严重性代码说明文件项目字符串抑制状态 不允许使用类型名称的错误(活动)E0254 C:\Users\senya\source\repos\Project6\Project6\MyForm.h Project6 174 错误C2275 System::Convert:将此类型用作表达式C:\Users\senya\source\repos\Project6\Project6\MyForm.h Project6 174无效 代码:Visual c++ 函数Conver.ToDouble,它有一个错误,visual-c++,Visual C++,返回转换时出现的错误: 严重性代码说明文件项目字符串抑制状态 不允许使用类型名称的错误(活动)E0254 C:\Users\senya\source\repos\Project6\Project6\MyForm.h Project6 174 错误C2275 System::Convert:将此类型用作表达式C:\Users\senya\source\repos\Project6\Project6\MyForm.h Project6 174无效 代码: #pragma一次 命名空间项目6{ 使用名
#pragma一次
命名空间项目6{
使用名称空间系统;
使用名称空间System::ComponentModel;
使用名称空间系统::集合;
使用命名空间System::Windows::Forms;
使用名称空间System::Data;
使用名称空间系统::绘图;
///
///СаааааMyForm
///
公共引用类MyForm:public System::Windows::Forms::Form
{
公众:
我的表格(作废)
{
初始化组件();
//
//待办事项:бббббббббббб
//
}
受保护的:
///
/// Освободить все используемые ресурсы.
///
~MyForm()
{
if(组件)
{
删除组件;
}
}
私有:系统::Windows::窗体::标签^label1;
受保护的:
private:System::Windows::Forms::TextBox^textBox1;
私有:系统::Windows::窗体::标签^label2;
private:System::Windows::Forms::TextBox^textBox2;
私有:系统::Windows::窗体::标签^label3;
私有:系统::Windows::窗体::组合框^comboBox1;
私有:系统::Windows::窗体::按钮^button1;
私有:系统::Windows::窗体::按钮^button2;
private:System::Windows::Forms::TextBox^textBox3;
私人:
///
/// Обязательная переменная конструктора.
///
系统::组件模型::容器^组件;
#pragma区域Windows窗体设计器生成的代码
///
/// Требуемый метод для поддержки конструктора — не изменяйте
/// содержимое этого метода с помощью редактора кода.
///
void初始化组件(void)
{
这->标签1=(gcnewsystem::Windows::Forms::Label());
这->textBox1=(gcnewsystem::Windows::Forms::TextBox());
这->label2=(gcnewsystem::Windows::Forms::Label());
这->textBox2=(gcnewsystem::Windows::Forms::TextBox());
这->label3=(gcnewsystem::Windows::Forms::Label());
这->comboBox1=(gcnew System::Windows::Forms::ComboBox());
此->按钮1=(gcnew System::Windows::Forms::Button());
此->按钮2=(gcnew System::Windows::Forms::Button());
这->textBox3=(gcnewsystem::Windows::Forms::TextBox());
此->SuspendLayout();
//
//标签1
//
此->标签1->自动调整大小=真;
这->标签1->字体=(gcnew System::Drawing::Font(L“Microsoft无衬线字体”,12));
该->标签1->位置=系统::图纸::点(12,43);
此->标签1->名称=L“标签1”;
该->标签1->尺寸=系统::图纸::尺寸(187,20);
此->标签1->选项卡索引=0;
此->标签1->文本=L“bчччччч”;
//
//文本框1
//
此->文本框1->位置=系统::绘图::点(16,77);
此->textBox1->Name=L“textBox1”;
该->文本框1->尺寸=系统::图纸::尺寸(173,20);
此->文本框1->选项卡索引=1;
//
//标签2
//
此->标签2->自动调整大小=真;
这->标签2->字体=(gcnew System::Drawing::Font(L“Microsoft Sans Serif”,12));
该->标签2->位置=系统::图纸::点(219,43);
此->label2->名称=L“label2”;
该->标签2->尺寸=系统::图纸::尺寸(187,20);
此->标签2->选项卡索引=2;
该->标签2->文本=L“Бччччччч”;
//
//文本框2
//
此->文本框2->位置=系统::绘图::点(223,77);
此->textBox2->Name=L“textBox2”;
此->文本框2->尺寸=系统::图纸::尺寸(173,20);
此->文本框2->选项卡索引=3;
//
//标签3
//
此->标签3->自动调整大小=真;
这->标签3->字体=(gcnew System::Drawing::Font(L“Microsoft无衬线字体”,12));
这个->标签3->位置=系统::图纸::点(12119);
此->标签3->名称=L“标签3”;
该->标签3->尺寸=系统::图纸::尺寸(168,20);
此->标签3->选项卡索引=4;
本->标签3->文本=L“bщббббббббббббю”;
//
//组合框1
//
此->comboBox1->FormattingEnabled=true;
这->组合框1->项目->添加范围(gcnew cli::array(4){L“+”,L“-”,L“*”,L“/”});
这个->组合框1->位置=系统::绘图::点(16165);
此->组合框1->名称=L“组合框1”;
此->组合框1->尺寸=系统::图纸::尺寸(150,21);
此->组合框1->选项卡索引=5;
//
//按钮1
//
此->按钮1->位置=系统::图纸::点(16260);
此->按钮1->名称=L“按钮1”;
该->按钮1->尺寸=系统::图纸::尺寸(254,69);
此->按钮1->选项卡索引=6;
此->按钮1->文本=L“ааааааааааааа;
此->按钮1->UseVisualStyleBackColor=true;
this->button1->Click+=gcnewsystem::EventHandler(this,&MyForm::button1\u Click);
//
//按钮2
//
#pragma once
namespace Project6 {
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>
/// Сводка для MyForm
/// </summary>
public ref class MyForm : public System::Windows::Forms::Form
{
public:
MyForm(void)
{
InitializeComponent();
//
//TODO: добавьте код конструктора
//
}
protected:
/// <summary>
/// Освободить все используемые ресурсы.
/// </summary>
~MyForm()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Label^ label1;
protected:
private: System::Windows::Forms::TextBox^ textBox1;
private: System::Windows::Forms::Label^ label2;
private: System::Windows::Forms::TextBox^ textBox2;
private: System::Windows::Forms::Label^ label3;
private: System::Windows::Forms::ComboBox^ comboBox1;
private: System::Windows::Forms::Button^ button1;
private: System::Windows::Forms::Button^ button2;
private: System::Windows::Forms::TextBox^ textBox3;
private:
/// <summary>
/// Обязательная переменная конструктора.
/// </summary>
System::ComponentModel::Container ^components;
#pragma region Windows Form Designer generated code
/// <summary>
/// Требуемый метод для поддержки конструктора — не изменяйте
/// содержимое этого метода с помощью редактора кода.
/// </summary>
void InitializeComponent(void)
{
this->label1 = (gcnew System::Windows::Forms::Label());
this->textBox1 = (gcnew System::Windows::Forms::TextBox());
this->label2 = (gcnew System::Windows::Forms::Label());
this->textBox2 = (gcnew System::Windows::Forms::TextBox());
this->label3 = (gcnew System::Windows::Forms::Label());
this->comboBox1 = (gcnew System::Windows::Forms::ComboBox());
this->button1 = (gcnew System::Windows::Forms::Button());
this->button2 = (gcnew System::Windows::Forms::Button());
this->textBox3 = (gcnew System::Windows::Forms::TextBox());
this->SuspendLayout();
//
// label1
//
this->label1->AutoSize = true;
this->label1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12));
this->label1->Location = System::Drawing::Point(12, 43);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(187, 20);
this->label1->TabIndex = 0;
this->label1->Text = L"Введите первое число:";
//
// textBox1
//
this->textBox1->Location = System::Drawing::Point(16, 77);
this->textBox1->Name = L"textBox1";
this->textBox1->Size = System::Drawing::Size(173, 20);
this->textBox1->TabIndex = 1;
//
// label2
//
this->label2->AutoSize = true;
this->label2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12));
this->label2->Location = System::Drawing::Point(219, 43);
this->label2->Name = L"label2";
this->label2->Size = System::Drawing::Size(187, 20);
this->label2->TabIndex = 2;
this->label2->Text = L"Введите первое число:";
//
// textBox2
//
this->textBox2->Location = System::Drawing::Point(223, 77);
this->textBox2->Name = L"textBox2";
this->textBox2->Size = System::Drawing::Size(173, 20);
this->textBox2->TabIndex = 3;
//
// label3
//
this->label3->AutoSize = true;
this->label3->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12));
this->label3->Location = System::Drawing::Point(12, 119);
this->label3->Name = L"label3";
this->label3->Size = System::Drawing::Size(168, 20);
this->label3->TabIndex = 4;
this->label3->Text = L"Выберите операцию:";
//
// comboBox1
//
this->comboBox1->FormattingEnabled = true;
this->comboBox1->Items->AddRange(gcnew cli::array< System::Object^ >(4) { L"+", L"-", L"*", L"/" });
this->comboBox1->Location = System::Drawing::Point(16, 165);
this->comboBox1->Name = L"comboBox1";
this->comboBox1->Size = System::Drawing::Size(150, 21);
this->comboBox1->TabIndex = 5;
//
// button1
//
this->button1->Location = System::Drawing::Point(16, 260);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(254, 69);
this->button1->TabIndex = 6;
this->button1->Text = L"Расчитать";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &MyForm::button1_Click);
//
// button2
//
this->button2->Location = System::Drawing::Point(336, 260);
this->button2->Name = L"button2";
this->button2->Size = System::Drawing::Size(254, 69);
this->button2->TabIndex = 7;
this->button2->Text = L"Сбросить";
this->button2->UseVisualStyleBackColor = true;
//
// textBox3
//
this->textBox3->Location = System::Drawing::Point(31, 220);
this->textBox3->Name = L"textBox3";
this->textBox3->Size = System::Drawing::Size(436, 20);
this->textBox3->TabIndex = 8;
//
// MyForm
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(617, 445);
this->Controls->Add(this->textBox3);
this->Controls->Add(this->button2);
this->Controls->Add(this->button1);
this->Controls->Add(this->comboBox1);
this->Controls->Add(this->label3);
this->Controls->Add(this->textBox2);
this->Controls->Add(this->label2);
this->Controls->Add(this->textBox1);
this->Controls->Add(this->label1);
this->Name = L"MyForm";
this->Text = L"MyForm";
this->ResumeLayout(false);
this->PerformLayout();
}
#pragma endregion
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
double a, b;
a = Convert.ToDouble(textBox1->Text);
}
};
}