网上找资料发现的，但是调试的时候发现有一些问题，改了一下，还有一定的问题，但是可以做一般使用了。没有考虑数据类型的问题，还有SQL Server 和access的区别，以后有时间再改进吧，不知道效率怎么样。如果有朋友改进，也麻烦给我发一份
复制代码代码如下:<%
class SQLString
'************************************
'变量定义
'************************************
'sTableName ---- 表名
'iSQLType ----SQL语句类型：0-增加，1-更新，2-删除,3-查询
'sWhere ---- 条件
'sOrder ---- 排序方式
'sSQL ----值
Private sTableName,iSQLType,sWhere,sOrder,sSQL
'************************************
'类初始化/结束
'************************************
Private Sub Class_Initialize()
sTableName=
iSQLType=0
sWhere=
sOrder=
sSQL=
End Sub
Private Sub Class_Terminate()
End Sub
'************************************
'属性
'************************************
'设置表名的属性
Public Property Let TableName(value)
sTableName=value
End Property
'设置条件
Public Property Let Where(value)
sWhere=value
End Property
'设置排序方式
Public Property Let Order(value)
sOrder=value
End Property
'设置查询语句的类型
Public property Let SQLType(value)
iSQLType=value
select case iSQLType
case 0
sSQL=insert into {&*#}0 ({&*#}1) values ({&*#}2)
case 1
sSQL=update {&*#}0 set {&*#}1={&*#}2
case 2
sSQL=delete from {&*#}0
case 3
sSQL=select {&*#}1 from {&*#}0
end select
End Property
'************************************
'函数
'************************************
'增加字段（字段名称，字段值）
Public Sub AddField(sFieldName,sValue)
select case iSQLType
case 0
sSQL=replace(sSQL,{&*#}1,sFieldName & ,{&*#}1)
sSQL=replace(sSQL,{&*#}2, & sValue & ,{&*#}2)
case 1
sSQL=replace(sSQL,{&*#}1,sFieldName)
sSQL=replace(sSQL,{&*#}2, & sValue & ,{&*#}1={&*#}2)
case 3
sSQL=replace(sSQL,{&*#}1,sFieldName & ,{&*#}1)
End Select
End Sub
'修改的返回字符串值的函数
'返回SQL语句
Public Function ReturnSQL()
sSQL=replace(sSQL,{&*#}0,sTableName)
select case iSQLType
case 0
sSQL=replace(sSQL,,{&*#}1,)
sSQL=replace(sSQL,,{&*#}2,)
case 1
sSQL=replace(sSQL,,{&*#}1={&*#}2,)
case 3
sSQL=replace(sSQL,,{&*#}1,)
end Select
if sWhere<> and iSQLType<>0 then
sSQL=sSQL & where & sWhere
end if
if sOrder<> and iSQLType<>0 then
sSQL=sSQL & order by & sOrder
end if
ReturnSQL=sSQL
End Function
'返回SQL语句
Public Function ReturnSQL1()
sSQL=replace(sSQL,{&*#}0,sTableName)
select case iSQLType
case 0
sSQL=replace(sSQL,,{&*#}1,)
sSQL=replace(sSQL,,{&*#}2,)
case 1
sSQL=replace(sSQL,,{&*#}1={&*#}2,)
case 3
sSQL=replace(sSQL,,{&*#}1,)
end Select
if sWhere<> and iSQLType<>0 then
sSQL=sSQL & where & sWhere
end if
if sOrder<> and iSQLType<>0 then
sSQL=sSQL & order by & sOrder
end if
ReturnSQL=sSQL
End Function
'清空语句
Public Sub Clear()
sTableName=
iSQLType=0
sWhere=
sOrder=
sSQL=
End Sub
End class
%>
调用例子：
<%
set a =new SQLString '创建类对象
a.TableName= message '设置表名为message
'a.where= issend =9
'a.order= issend desc
a.SQLType=0 '设置查询类型为增加记录
a.AddField incept, '2'
a.AddField sender , '%3%'
a.AddField title , #&now&#
a.AddField sender , 5
a.AddField content , 6
a.AddField sendtime , 7
a.AddField flag, 8
a.AddField issend , 9
Response.Write a.ReturnSQl
set a=nothing
%>
<%
set a =new SQLString '创建类对象
a.TableName= message '设置表名为message
'a.where= issend =9
'a.order= issend desc
a.SQLType=0 '设置查询类型为增加记录
a.AddField incept, '2'
a.AddField sender , '%3%'
a.AddField title , #&now&#
a.AddField sender , 5
a.AddField content , 6
a.AddField sendtime , 7
a.AddField flag, 8
a.AddField issend , 9
Response.Write a.ReturnSQl
set a=nothing
%>
<%
set a =new SQLString '创建类对象
a.TableName= message '设置表名为message
'a.where= issend =9
'a.order= issend desc
a.SQLType=0 '设置查询类型为增加记录
a.AddField incept, '2'
a.AddField sender , '%3%'
a.AddField title , #&now&#
a.AddField sender , 5
a.AddField content , 6
a.AddField sendtime , 7
a.AddField flag, 8
a.AddField issend , 9
Response.Write a.ReturnSQl
set a=nothing
%>