# AddQuerystringParam
`AddQuerystringParam(Key, Value)`
`Key-{String}`
`Value-{Variant}`
添加要在`FormattedResource`中使用的querystring参数以进行请求。
```
Dim Request As New WebRequest
Request.Resource = "messages"
Request.AddQuerystringParam "from", "Tim"
Request.FormattedResource '// = "messages?from=Tim"
```
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