查人人中国名人网一周大事记:ASP编程问题
来源：百度文库 编辑：查人人中国名人网 时间：2024/04/29 02:50:09
谁能解释下下面一段代码
<% set rec=server.createobject("ADODB.recordset")
rec.open "select img from news where newsid=" & cstr(request("newsid")),conn,1,1
Response.ContentType = "image/pjpeg"
Response.BinaryWrite rec("img").getChunk(7500000)
rec.close
set rec=nothing
%>
<% set rec=server.createobject("ADODB.recordset")
rec.open "select img from news where newsid=" & cstr(request("newsid")),conn,1,1
Response.ContentType = "image/pjpeg"
Response.BinaryWrite rec("img").getChunk(7500000)
rec.close
set rec=nothing
%>
<% set rec=server.createobject("ADODB.recordset") '创建一个记录集
rec.open "select img from news where newsid=" & cstr(request("newsid")),conn,1,1 '打开记录，返回查询结果
Response.ContentType = "image/pjpeg" '设定次页的属性为图片
Response.BinaryWrite rec("img").getChunk(7500000) '在数据库读取img字段的值，类型为图片
rec.close '关闭记录集
set rec=nothing '
%>
rec.open "select img from news where newsid=" & cstr(request("newsid")),conn,1,1
代表你在asp?newsid=后面的数值
然后在news表中查询img字段为asp?newsid=后面的数值的
资料
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