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<title>多參數以及多值的Query字段處理</title>
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<p ALIGN="JUSTIFY">多參數以及多值的<font FACE="宋體">Query</font>字段處理</p>
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<p ALIGN="JUSTIFY"></font><font SIZE="3">你可以通過</font><font FACE="宋體"
SIZE="3">Query</font><font SIZE="3">字段傳遞不止一個鍵值對，在傳遞多個參數時，僅需要使用連接符</font><font
FACE="宋體" SIZE="3">(&)</font><font SIZE="3">就可以了。下面的例子傳遞了兩個參數：</p>
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<p ALIGN="JUSTIFY"><a href=</font><font SIZE="3">“</font><font FACE="宋體" SIZE="3">response.asp?firstparam=<%=Server.URLEncode(</font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">This is the first parameter.</font><font
SIZE="3">”</font><font FACE="宋體" SIZE="3">)%>&<Secondparam=<%=Server.URLEncode(</font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">This is the second parameter.</font><font
SIZE="3">”</font><font FACE="宋體" SIZE="3">)%></font><font SIZE="3">“</font><font
FACE="宋體" SIZE="3">></font><font SIZE="3">點擊這里</font><font FACE="宋體"
SIZE="3"></a></p>
<p ALIGN="JUSTIFY"></font><font SIZE="3">這個連接的</font><font FACE="宋體"
SIZE="3">Query</font><font SIZE="3">字段就包括了兩個參數（鍵值對），鍵名分別是</font><font
FACE="宋體" SIZE="3">FirstParam</font><font SIZE="3">和</font><font FACE="宋體"
SIZE="3">SecondParam</font><font SIZE="3">。值分別對應于”</font><font
FACE="宋體" SIZE="3">This is the first parameter.</font><font SIZE="3">”和”</font><font
FACE="宋體" SIZE="3">This is the second parameter.</font><font SIZE="3">”</font><font
FACE="宋體" SIZE="3">, URLEncode()</font><font SIZE="3">方法被用來將這些值在傳遞中保持正確格式。</p>
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<p ALIGN="JUSTIFY"></font><font SIZE="3">在</font><font FACE="宋體" SIZE="3">Response.asp</font><font
SIZE="3">中，你可以用下面的方法顯示兩個參數：</p>
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<p ALIGN="JUSTIFY"><p><%=Request.QueryString(</font><font SIZE="3">“</font><font
FACE="宋體" SIZE="3">FirstParam</font><font SIZE="3">”</font><font FACE="宋體"
SIZE="3">)%></p>
<p ALIGN="JUSTIFY"><p><%=Request.QueryString(</font><font SIZE="3">“</font><font
FACE="宋體" SIZE="3">SecondParam</font><font SIZE="3">”</font><font FACE="宋體"
SIZE="3">)%></p>
<p ALIGN="JUSTIFY"></font><font SIZE="3">可以看出，接受信息還是老方法，輸出結果為：</p>
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<p ALIGN="JUSTIFY">This is the first parameter.</p>
<p ALIGN="JUSTIFY">This is the second parameter.</p>
<p ALIGN="JUSTIFY"></font><font SIZE="3">你一樣可以利用一個參數對應多個值，只需要在</font><font
FACE="宋體" SIZE="3">query</font><font SIZE="3">字段中將參數名稱寫多遍就可以了，例如下面這個例子：</p>
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<p ALIGN="JUSTIFY"><A HREF=</font><font SIZE="3">“</font><font FACE="宋體" SIZE="3">response.asp?OnlyParam=<%=Server.URLEncode(</font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">This is the first value of the only
parameter.</font><font SIZE="3">”</font><font FACE="宋體" SIZE="3">)%>&OnlyParam=<%=Server.URLEncode(</font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">This is the second value of the only
parameter.</font><font SIZE="3">”</font><font FACE="宋體" SIZE="3">)%></font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">></font><font SIZE="3">點擊這里</font><font
FACE="宋體" SIZE="3"></a></p>
<p ALIGN="JUSTIFY"></font><font SIZE="3">在這里面，參數（鍵）</font><font
FACE="宋體" SIZE="3">OnlyParam</font><font SIZE="3">對應于兩個值，分別是</font><font
FACE="宋體" SIZE="3">This is the first value of the only parameter.</font><font SIZE="3">”和“</font><font
FACE="宋體" SIZE="3">This is the second value of the only parameter.</font><font
SIZE="3">”，那么</font><font FACE="宋體" SIZE="3">Count</font><font SIZE="3">屬性又可以在這里面來檢查到底有多少個值，同時下面的例子用</font><font
FACE="宋體" SIZE="3">For Each</font><font SIZE="3">來顯示所有的值。</p>
<p ALIGN="JUSTIFY">這個</font><font FACE="宋體" SIZE="3">OnlyParam</font><font
SIZE="3">參數有</font><font FACE="宋體" SIZE="3"><%=Request.QueryString(</font><font
SIZE="3">“</font><font FACE="宋體" SIZE="3">OnlyParam</font><font SIZE="3">”</font><font
FACE="宋體" SIZE="3">).Count%></font><font SIZE="3">個值，</p>
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<p ALIGN="JUSTIFY"><p></font><font SIZE="3">分別是：</p>
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<p ALIGN="JUSTIFY"><%</p>
<p ALIGN="JUSTIFY">FOR EACH pvalue IN Request.QueryString(</font><font SIZE="3">“</font><font
FACE="宋體" SIZE="3">OnlyParam</font><font SIZE="3">”</font><font FACE="宋體"
SIZE="3">)</p>
<p ALIGN="JUSTIFY">Response.Write(</font><font SIZE="3">“</font><font FACE="宋體"
SIZE="3"><br></font><font SIZE="3">“</font><font FACE="宋體" SIZE="3">&pvalue)</p>
<p ALIGN="JUSTIFY">NEXT</p>
<p ALIGN="JUSTIFY">%></p>
<p ALIGN="JUSTIFY">FOR EACH</font><font SIZE="3">循環會將所有值全部顯示出來，如果這個參數是不存在的，那么</font><font
FACE="宋體" SIZE="3">count</font><font SIZE="3">屬性會顯示</font><font
FACE="宋體" SIZE="3">0</font><font SIZE="3">個值同時循環不會執行。</p>
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