# 如何查看完整卡號

{% stepper %}
{% step %}
點擊“卡片”

<div align="left"><figure><img src="/files/ez1co6Mcvcf9RzW9UaQe" alt="" width="293"><figcaption></figcaption></figure></div>
{% endstep %}

{% step %}
身份驗證<br>

* 無2FA：簡訊驗證碼+信箱驗證碼
* 有2FA：請輸入Google Authenticator+信箱驗證碼
* 通行密鑰（Passkey）

{% endstep %}

{% step %}
取得卡片號、有效期限及CVV碼

{% endstep %}
{% endstepper %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://hoyapay.gitbook.io/chang-jian-wen-ti-fan-ti-zhong-wen/ka-pian-chang-jian-wen-ti/ru-he-cha-kan-wan-zheng-ka-hao.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.