C++ cli visualc&x2B+；致命错误LNK1120:1个未解析的外部

每次我试着运行这个程序，它都会给我一个错误：编辑

致命错误LNK1120:1个未解析的外部

还有一个错误

LNK2001:未解析的外部符号_main

编辑

Ui.h：

#pragma once

namespace Spammer2 {

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 Ui
/// </summary>
public ref class Ui : public System::Windows::Forms::Form
{
public:
    Ui(void)
    {
        InitializeComponent();
        //
        //TODO: Add the constructor code here
        //
    }

protected:
    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    ~Ui()
    {
        if (components)
        {
            delete components;
        }
    }
private: System::Windows::Forms::TextBox^  textBox1;
protected: 
private: System::Windows::Forms::Button^  button1;
private: System::Windows::Forms::Button^  button2;
private: System::Windows::Forms::TextBox^  textBox2;
private: System::Windows::Forms::Label^  label1;
private: System::Windows::Forms::Timer^  timer1;
private: System::ComponentModel::IContainer^  components;

private:
    /// <summary>
    /// Required designer variable.
    /// </summary>


#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->components = (gcnew System::ComponentModel::Container());
        this->textBox1 = (gcnew System::Windows::Forms::TextBox());
        this->button1 = (gcnew System::Windows::Forms::Button());
        this->button2 = (gcnew System::Windows::Forms::Button());
        this->textBox2 = (gcnew System::Windows::Forms::TextBox());
        this->label1 = (gcnew System::Windows::Forms::Label());
        this->timer1 = (gcnew System::Windows::Forms::Timer(this->components));
        this->SuspendLayout();
        // 
        // textBox1
        // 
        this->textBox1->Location = System::Drawing::Point(12, 13);
        this->textBox1->Name = L"textBox1";
        this->textBox1->Size = System::Drawing::Size(260, 20);
        this->textBox1->TabIndex = 0;
        this->textBox1->TextChanged += gcnew System::EventHandler(this, &Ui::textBox1_TextChanged);
        // 
        // button1
        // 
        this->button1->Location = System::Drawing::Point(12, 138);
        this->button1->Name = L"button1";
        this->button1->Size = System::Drawing::Size(75, 23);
        this->button1->TabIndex = 1;
        this->button1->Text = L"Start";
        this->button1->UseVisualStyleBackColor = true;
        this->button1->Click += gcnew System::EventHandler(this, &Ui::button1_Click);
        // 
        // button2
        // 
        this->button2->Location = System::Drawing::Point(196, 138);
        this->button2->Name = L"button2";
        this->button2->Size = System::Drawing::Size(75, 23);
        this->button2->TabIndex = 2;
        this->button2->Text = L"Stop";
        this->button2->UseVisualStyleBackColor = true;
        this->button2->Click += gcnew System::EventHandler(this, &Ui::button2_Click);
        // 
        // textBox2
        // 
        this->textBox2->Location = System::Drawing::Point(172, 112);
        this->textBox2->Name = L"textBox2";
        this->textBox2->Size = System::Drawing::Size(100, 20);
        this->textBox2->TabIndex = 3;
        this->textBox2->Text = L"100";
        this->textBox2->TextChanged += gcnew System::EventHandler(this, &Ui::textBox2_TextChanged);
        // 
        // label1
        // 
        this->label1->AutoSize = true;
        this->label1->Location = System::Drawing::Point(62, 115);
        this->label1->Name = L"label1";
        this->label1->Size = System::Drawing::Size(104, 13);
        this->label1->TabIndex = 4;
        this->label1->Text = L"Interval milliseconds:";
        this->label1->Click += gcnew System::EventHandler(this, &Ui::label1_Click);
        // 
        // timer1
        // 
        this->timer1->Tick += gcnew System::EventHandler(this, &Ui::timer1_Tick);
        // 
        // Ui
        // 
        this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
        this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
        this->ClientSize = System::Drawing::Size(284, 173);
        this->Controls->Add(this->label1);
        this->Controls->Add(this->textBox2);
        this->Controls->Add(this->button2);
        this->Controls->Add(this->button1);
        this->Controls->Add(this->textBox1);
        this->Name = L"Ui";
        this->Text = L"Spammereme V2";
        this->ResumeLayout(false);
        this->PerformLayout();

    }
#pragma endregion

    private: System::Void textBox1_TextChanged(System::Object^  sender, System::EventArgs^  e) {
             }
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
             timer1->Start();
         }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
             timer1->Stop();
         }
private: System::Void textBox2_TextChanged(System::Object^  sender, System::EventArgs^  e) {
         }
private: System::Void label1_Click(System::Object^  sender, System::EventArgs^  e) {
         }
private: System::Void timer1_Tick(System::Object^  sender, System::EventArgs^  e) {
            timer1->Interval = System::Int32::Parse(textBox2->Text);
            SendKeys::Send(textBox1->Text);
            SendKeys::Send("{ENTER}");
         }
}
};

---

编译器错误将显示您最初提出的问题的行号。 然而，看起来你有

namespace Spammer2 {

//lots of usings

public ref class Ui : public System::Windows::Forms::Form
{
//lots of other stuff
}
};

您需要以分号结束类定义，而不是名称空间：

namespace Spammer2 {

//lots of usings

public ref class Ui : public System::Windows::Forms::Form
{
//lots of other stuff
}; //<-------
}  //<-------

---

编译器还应该告诉您错误的确切位置。（例如，它在第154行——上面哪一行是第154行？看那里，你会发现问题所在。）另一个有帮助的方法是一致地缩进代码。这使得这样的错误更容易发现。（虽然在这种情况下，假设比芬下面的评论是正确的，它可能没有多大帮助。）看起来您缺少了一个

在类之后（倒数第二行）。这也可能与标记为CLI有关。如果链接器正在查找_main，则问题不在此代码中。它位于主类或项目设置中。
namespace Spammer2 {

//lots of usings

public ref class Ui : public System::Windows::Forms::Form
{
//lots of other stuff
}; //<-------
}  //<-------

#include "StdAfx.h"
#include "Ui.h"

int main()
{
}