> For the complete documentation index, see [llms.txt](https://docs.dataimpulse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataimpulse.com/dataimpulse-documentation-zh-cn/dai-li/can-shu/zhou.md).

# 州

要指定来自特定美国州的代理，包括 `state` 在授权字符串中。例如， `__cr.us;state.arizona`.

点击 [here](https://docs.google.com/spreadsheets/d/17vybtGjgb83uGLTFzuXIYEvuP0_LD95wwPAQCRScERg) 以获取完整的美国各州列表。

**代码示例**

在此示例中，对 gw\.dataimpulse.com 的查询是从美国亚利桑那州的 IP 地址执行的：

```
curl -x "http://login__cr.us;state.arizona:password@gw.dataimpulse.com:823" https://api.ipify.org/
```

{% hint style="info" %}
重要的是要注意，选择国家是指定城市、州、邮编和 ASN 定位的强制要求。
{% endhint %}

***

您现在可以使用 `nostate` 参数排除特定州。

**示例：** 要定位美国但排除加利福尼亚，请使用：

`cr.us;nostate.california`

{% hint style="info" %}
通过 `nostate` 参数路由的流量，以及 `state` 参数按标准费率的两倍计费。
{% endhint %}


---

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