asp ado下面的示例代码,为什么用for each…next和do until…rs.movenext loop两重循环来显示全部内容?
<html><body><%setconn=Server.CreateObject("ADODB.Connection")conn.Provider="Microsoft...
<html>
<body>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "SELECT * FROM Customers", conn
do until rs.EOF
for each x in rs.Fields
Response.Write(x.name)
Response.Write(" = ")
Response.Write(x.value & "<br />")
next
Response.Write("<br />")
rs.MoveNext
loop
rs.close
conn.close
%>
</body>
</html>
这段代码是常用示例代码
里面的for each…loop循环已经遍历了rs中的内容,为什么还要用rs.movenext? 展开
<body>
<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open "c:/webdata/northwind.mdb"
set rs = Server.CreateObject("ADODB.recordset")
rs.Open "SELECT * FROM Customers", conn
do until rs.EOF
for each x in rs.Fields
Response.Write(x.name)
Response.Write(" = ")
Response.Write(x.value & "<br />")
next
Response.Write("<br />")
rs.MoveNext
loop
rs.close
conn.close
%>
</body>
</html>
这段代码是常用示例代码
里面的for each…loop循环已经遍历了rs中的内容,为什么还要用rs.movenext? 展开
1个回答
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