类文件 db.class 代码如下using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
class Child
{
private int age;
private string name; // Default constructor:
public Child()
{ name = "N/A"; } // Constructor:
public Child(string name, int age)
{
this.name = name;
this.age = age;
} // Printing method:
public void PrintChild()
{ Console.WriteLine("{0}, {1} years old.", name, age); }
} public class StringTest
{
public StringTest()
{
// Create objects by using the new operator:
Child child1 = new Child("Craig", 11);
Child child2 = new Child("Sally", 10);
// Create an object using the default constructor:
Child child3 = new Child(); // Display results:
Console.Write("Child #1: ");
child1.PrintChild();
Console.Write("Child #2: ");
child2.PrintChild();
Console.Write("Child #3: ");
child3.PrintChild();
}
}
/* Output:
Child #1: Craig, 11 years old.
Child #2: Sally, 10 years old.
Child #3: N/A, 0 years old.那么在页面 1.aspx 中如何调用呢?
使显示结果为
/* Output:
Child #1: Craig, 11 years old.
Child #2: Sally, 10 years old.
Child #3: N/A, 0 years old.非常感谢
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
class Child
{
private int age;
private string name; // Default constructor:
public Child()
{ name = "N/A"; } // Constructor:
public Child(string name, int age)
{
this.name = name;
this.age = age;
} // Printing method:
public void PrintChild()
{ Console.WriteLine("{0}, {1} years old.", name, age); }
} public class StringTest
{
public StringTest()
{
// Create objects by using the new operator:
Child child1 = new Child("Craig", 11);
Child child2 = new Child("Sally", 10);
// Create an object using the default constructor:
Child child3 = new Child(); // Display results:
Console.Write("Child #1: ");
child1.PrintChild();
Console.Write("Child #2: ");
child2.PrintChild();
Console.Write("Child #3: ");
child3.PrintChild();
}
}
/* Output:
Child #1: Craig, 11 years old.
Child #2: Sally, 10 years old.
Child #3: N/A, 0 years old.那么在页面 1.aspx 中如何调用呢?
使显示结果为
/* Output:
Child #1: Craig, 11 years old.
Child #2: Sally, 10 years old.
Child #3: N/A, 0 years old.非常感谢
child1.PrintChild(); //调用类里的打印方法
namespace ns1
{
class Child
{
......
}
public class StringTest
{
......
}
}//调用
StringTest st= new StringTest();
st.StringTest();
StringTest st= new StringTest();
st.StringTest();
中st.StringTest(); 是无效的
TextWriterTraceListener myWriter = new
TextWriterTraceListener(System.Console.Out);
Debug.Listeners.Add(myWriter);
Debug.Write( " ");