案例：ASP.net案例     状态：不可编辑再运行    进入竖版
 运行结果　
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@Code
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Dim price=25
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End Code
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<html>
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<body>
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@if price>=30 Then
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    @<p>The price is high.</p>
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ElseIf price>20 And price<30 then
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    @<p>The price is OK.</p>
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Else
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    @<p>The price is low.</p>
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End If
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</body>
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</html>