一个程序问题，求高手指点下迷津，小弟最后20分了。。。

Question

求高手一个能顺利运行的满意解答！！！。。编译错误
说明: 在编译向该请求提供服务所需资源的过程中出现错误。请检查下列特定错误详细信息并适当地修改源代码。编译器错误消息: CS0117: “ASP.aspnet_engine_object_aspx.Car”并不包含“MyEngine”的定义源错误:行 112:    Engine MyEngine=new Engine("Xeer", "070","V6");
行 113:   
行 114:    AlexEngine=ShumaCar.MyEngine.Name;
行 115:    RobEngine=ShumaCar.MyEngine.Name;
行 116:    MyEngine=ShumaCar.MyEngine.Name;
修改以后还是不行啊，这个代码应该怎么改？？？<%@page language="C#" runat="server" Debug="true"%>
<script runat="server">
public class Engine
{
    private string name;
    private string rpm;
    private string serialno;
   
      public Engine(string Name, string Rpm, string SerialNo)//如果这里有参数名称,那么实例化一个engine的时候也要在括号内表明参数名称(并非参数)
      {
          name=Name;
          rpm=Rpm;
          serialno=SerialNo;
      }    public void SwitchOn()
    {
        if(Name=="Xeer" && Rpm=="070" && SerialNo=="V6")
        {
        return "The engine is running.";
        }
      else
      {
        return "The engine is not running.";
      }    }
}
public class Car
{
    private string color;
    private int gear;
    private int ignition;
    private Engine engine;    public Engine objEngine
    {
      get
      {
        return engine;
      }
      set
      {
        engine=value;
      }
    }
      
    public static int Count
    {
        get
        {
          return count;
        }
    }
    public string Color
    {
        get
        {
          return color;
        }
        set
        {
          color=value;
        }
    }
   
    public int Gear
    {
        get
        {
          return gear;
        }
    }
       public void ChangeGear(int direction)
    {
        if(direction <0)gear-=1;
        if(direction>0)gear+=1;
        if(gear>5)gear=5;
        if(gear <-1)gear=-1;
    }
   
    public void ChangeGear(string direction)
    {
      if(direction.ToLower()=="down")
      {
        ChangeGear(-1);
      }
      if(direction.ToLower()=="up")
      {
        ChangeGear(+1);
      }
    }
   
 
  }
    public void Page_Load()
  {
    Car ShumaCar=new Car();
   
    ShumaCar.objEngine=new Engine("Xeer", "070","V6");    Engine AlexEngine=new Engine("Ferrari", "050", "V10");
    Engine RobEngine=new Engine("Fdd", "060", "V3");
    Engine MyEngine=new Engine("Xeer", "070","V6");
   
    AlexEngine=ShumaCar.MyEngine.Name;
    RobEngine=ShumaCar.MyEngine.Name;
    MyEngine=ShumaCar.MyEngine.Name;
   
       Response.Write(" <b>New object 'ShumaCar' created. </b>");
   
    Response.Write(" <br/>Color:"+ShumaCar.Color);
    Response.Write(" <br/>Gear:" +ShumaCar.Gear);
   
    ShumaCar.Color="Black";
    ShumaCar.ChangeGear(+1);
    Response.Write(" <br/> <b>Properties updated. </b>");
   
    Response.Write(" <br/>Color:" +ShumaCar.Color);
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
   
    ShumaCar.Color="Black";
    ShumaCar.ChangeGear(+1);
    Response.Write(" <br/> <b>Properties updated. </b>");
   
    Response.Write(" <br/>Color:" +ShumaCar.Color);
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
   
    ShumaCar.ChangeGear("Up");
    Response.Write(" <br/> <b>Shifted 'up' one gear. </b>");
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
   
   
   
   
    Response.Write(" <hr>Attempting to start ShumaCar with AlexEngine:");
    ShumaCar.MyEngine("Ferrari", "050", "V10");
    Response.Write(ShumaCar.MyEngine.SwitchOn);
   
    Response.Write(" <hr>Attempting to start ShumaCar with RobEngine:");
    ShumaCar.MyEngine(RobEngine);
    Response.Write(ShumaCar.MyEngine.SwitchOn);
   
    Response.Write(" <hr>Attempting to start ShumaCar with MyEngine:");
    ShumaCar.MyEngine(MyEngine);
    Response.Write(ShumaCar.MyEngine.SwitchOn);
    Response.Write(" <br/>Attempting to stop ShumaCar:");
  }</script> 

Answer 1

编译一下解决方案,或者更新一下dll的引用

Answer 2

这样写,不是又回到asp时代了吗?

Answer 3

AlexEngine=ShumaCar.MyEngine.Name; 
    RobEngine=ShumaCar.MyEngine.Name; 
    MyEngine=ShumaCar.MyEngine.Name; 
 
改为
ShumaCar.objEngine.Name; 

Answer 4

c:\inetpub\wwwroot\ASPNET\engine_object.aspx(147,5): error CS1502: 与“System.Web.HttpResponse.Write(string)”最匹配的重载方法具有一些无效参数
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(147,20): error CS1503: 参数“1”: 无法从“void”转换为“string”
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(151,29): error CS0119: “ASP.aspnet_engine_object_aspx.Car.MyEngine()”是一个“方法”，这在给定的上下文中无效
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(155,29): error CS0119: “ASP.aspnet_engine_object_aspx.Car.MyEngine()”是一个“方法”，这在给定的上下文中无效
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(21,9): error CS0127: 由于“ASP.aspnet_engine_object_aspx.Engine.SwitchOn(string, string, string)”返回 void，返回关键字后面不得有对象表达式
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(25,9): error CS0127: 由于“ASP.aspnet_engine_object_aspx.Engine.SwitchOn(string, string, string)”返回 void，返回关键字后面不得有对象表达式
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(29,9): error CS0127: 由于“ASP.aspnet_engine_object_aspx.Engine.SwitchOn(string, string, string)”返回 void，返回关键字后面不得有对象表达式
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(53,11): error CS1002: 应输入 ;
c:\inetpub\wwwroot\ASPNET\engine_object.aspx(64,18): error CS0103: 当前上下文中不存在名称“count”帮忙啊,高手呢??
<%@page language="C#" runat="server" Debug="true"%>
<script runat="server">
public class Engine
{
    private string name;
    private string rpm;
    private string serialno;
    private string Name2;
   
      public Engine(string Name, string Rpm, string SerialNo)//如果这里有参数名称,那么实例化一个engine的时候也要在括号内表明参数名称(并非参数)
      {
          name=Name;
          rpm=Rpm;
          serialno=SerialNo;
      }    public  void SwitchOn(string Name, string Rpm, string SerialNo)
    {
        if(Name=="Xeer" && Rpm=="070" && SerialNo=="V6")
        {
        return "The engine is running.";
        }
      else if(Name=="Ferrari" && Rpm=="050" && SerialNo=="V10")
      {
        return "The engine is not running.";
      }
      else if(Name=="Fdd" && Rpm=="060" && SerialNo=="V3")
      {
        return "The engine is not running.";
      }
    }
}
public class Car
{
    private string color;
    private int gear;
    private int ignition;
    private Engine engine;    public Engine objEngine
    {
      get
      {
        return engine;
      }
      set
      {
        engine=value;
      }
    }
   public  void MyEngine()
   {
       get
       {
          return engine;
        }
    }   
    public static int Count
    {
        get
        {
          return count;
        }
    }
    public string Color
    {
        get
        {
          return color;
        }
        set
        {
          color=value;
        }
    }
   
    public int Gear
    {
        get
        {
          return gear;
        }
    }
       public void ChangeGear(int direction)
    {
        if(direction <0)gear-=1;
        if(direction>0)gear+=1;
        if(gear>5)gear=5;
        if(gear <-1)gear=-1;
    }
   
    public void ChangeGear(string direction)
    {
      if(direction.ToLower()=="down")
      {
        ChangeGear(-1);
      }
      if(direction.ToLower()=="up")
      {
        ChangeGear(+1);
      }
    }
   
 
  }
    public void Page_Load()
  {
    Car ShumaCar=new Car();
    Engine AlexEngine=new Engine("Ferrari", "050", "V10");
    Engine RobEngine=new Engine("Fdd", "060", "V3");
    Engine MyEngine=new Engine("Xeer", "070", "V6");
    
    ShumaCar.objEngine=new Engine("Xeer", "070","V6");    Response.Write(" <b>New object 'ShumaCar' created. </b>");
   
    Response.Write(" <br/>Color:"+ShumaCar.Color);
    Response.Write(" <br/>Gear:" +ShumaCar.Gear);
   
    ShumaCar.Color="Black";
    ShumaCar.ChangeGear(+1);
    Response.Write(" <br/> <b>Properties updated. </b>");
   
    Response.Write(" <br/>Color:" +ShumaCar.Color);
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
   
    ShumaCar.Color="Black";
    ShumaCar.ChangeGear(+1);
    Response.Write(" <br/> <b>Properties updated. </b>");
   
    Response.Write(" <br/>Color:" +ShumaCar.Color);
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
   
    ShumaCar.ChangeGear("Up");
    Response.Write(" <br/> <b>Shifted 'up' one gear. </b>");
    Response.Write(" <br/>New gear:"+ShumaCar.Gear);
       Response.Write(" <hr>Attempting to start ShumaCar with AlexEngine:");    Response.Write(ShumaCar.objEngine.SwitchOn("Ferrari", "050", "V10"));
   
    Response.Write(" <hr>Attempting to start ShumaCar with RobEngine:");
    ShumaCar.objEngine=new Engine("Fdd", "060", "V3");
    Response.Write(ShumaCar.MyEngine.SwitchOn);
   
    Response.Write(" <hr>Attempting to start ShumaCar with MyEngine:");
    ShumaCar.objEngine=new Engine("Xeer", "070", "V6");
    Response.Write(ShumaCar.MyEngine.SwitchOn);
    Response.Write(" <br/>Attempting to stop ShumaCar:");
  }</script>