ASP类Class入门 推荐

<%
''声明一个名为myclass的类 
Class myclass

Private a1,b1

''类的初始化
Private Sub Class_Initialize
a1=0
b1=0
End Sub 

''定义一个属性
Public Property Let width(ax)
a1=ax
End Property

''定义另个一个属性
Public Property Let height(bx)
b1=bx
End Property

''计算两个属性值的结果，得到一个新的属性
Public Property Get area
area=b1*a1
End Property

End Class

Set tianya=New myclass ''定义一个名为tianya的对象myclass的实例
tianya.width=50
tianya.height=60
response.write tianya.area
%>

<%
Class userclass
Private id,name,content

Private Sub Class_Initialize()   '类的初始化,连接数据库
username=""
usercontent=""
end sub

'以下设置类的几个属性
Public Property Let userid(vNewvalue)
id=Cint(vNewvalue)
End Property

Public Property Get userid
userid=id
End Property


Public Property Let username(vNewvalue)
name=vNewvalue
End Property

Public Property Get username
username=name
End Property

Public Property Let usercontent(vNewvalue)
content=vNewvalue
End Property

Public Property Get usercontent
usercontent=content
End Property

'添加记录
Public sub adduser()
if username <> "" and usercontent <> "" then
Set rs = Server.Createobject("adodb.Recordset")
SQL="Select * From user"
rs.Open SQL,Conn,1,3
rs.AddNew
rs("name") = username
rs("Content") = usercontent
rs.Update
rs.Close
Set rs = Nothing
Response.write "添加记录成功!"
end if
end sub


'显示一条记录
Public sub showuser()
set rs=server.createobject("adodb.recordset")
sql="select * from user where id=" & userid
rs.open sql,conn,1,3
username=rs("name")
usercontent=rs("content")
rs.close
end sub

'编辑记录
Public sub edit()
set rs=server.createobject("adodb.recordset")
sql="select * from user where id=" & userid
rs.open sql,conn,1,1
username=rs("name")
usercontent=rs("content")
rs.close
end sub

'保存编辑
Public sub saveedit()
set rs=server.createobject("adodb.recordset")
sql="select * from user where id =" & userid
rs.open sql,conn,1,3
rs("name")=username
rs("content")=usercontent
rs.update
rs.close
Response.write "更新记录成功!"
end sub

'删除记录
public sub deluser()
set rs=server.createobject("adodb.recordset")
sql="delete from user where id="& userid
rs.open sql,conn,1,1
set rs=nothing
Response.write "删除记录成功!"
end sub

'挑战分页显示~~！！
public sub list(n)
dim page 
page=request("page") 
PageSize = n
dim rs,strSQL,news 
strSQL ="SELECT * FROM user ORDER BY id DESC" 

Set rs = Server.CreateObject("ADODB.Recordset") 
rs.open strSQL,Conn,3,3 
rs.PageSize = PageSize 
totalfilm=rs.recordcount 
pgnum=rs.Pagecount 
if page="" or clng(page)<1 then page=1 
if clng(page) > pgnum then page=pgnum 
if pgnum>0 then rs.AbsolutePage=page 

if rs.eof then 
response.write "<font color='#003366' class='3dfont'>没有记录!</font>" 
else 
count=0
do while not (rs.eof or rs.bof) and count<rs.PageSize
with response
.write "<table><tr><td> "
.write rs("id")&" "
.write "<a href=show.asp?id="&rs("id")&">"
.write rs("name")
.write "</a> "
.write "内容: "&rs("content")
.write "</td></tr></table>"
end with
rs.movenext
count=count+1
loop
end if
with response
.write "<table><tr><td> 共<b>"
.write rs.pagecount
.write "</b>页"
for i=1 to rs.pagecount
.write " <a href=list.asp?page="&i&">"
.write i
.write "</a>"
next
rs.close
set rs=nothing
.write "</td></tr></table>"
end with
end sub


'类退出后,作清理工作
Private Sub class_terminate()
If IsObject(Conn) Then Conn.Close:Set Conn = Nothing
End Sub 
End Class
%>