> For the complete documentation index, see [llms.txt](https://docs.gpmautomate.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gpmautomate.com/automate-zh/cao-zuo-zhi-nan/text-and-number/two-factor-authentication.md).

# 2FA代码

2FA 代码是用于自动生成基于时间变化的 6 位数字双重验证代码的操作（类似于手机上的 Google Authenticator 或 Authy），该代码由提供的原始安全密钥生成。

此操作在 MMO 场景中至关重要，帮助自动绕过登录 Facebook、Google、X (Twitter)、Discord、Coinlist 等账户时的安全验证步骤，而无需打开手机手动输入。

#### 配置参数：

* Secret key: 原始安全密钥（由字母和数字组成的长字符串，通常在您在网站上启用双重安全功能时提供）。
* Output variable: 存储生成的 6 位数字验证码的变量名称。

#### 实际示例：自动填写 Facebook 登录时的 2FA 代码

假设您在 Excel 中有一个 Facebook 账户的数据，其中该账户的双重安全密钥（Secret key）列为：`JBSWY3DPEHPK3PXP`。

当浏览器导航到 Facebook 登录页面后，在输入用户名/密码后，Facebook 将要求输入 6 位数字验证码以进入账户。您可以按如下方式配置自动处理脚本：

* 配置方式：
  * 调用 2FA 代码操作。
  * Secret key: 输入字符串 `JBSWY3DPEHPK3PXP`（或从读取的 Excel 文件中传递包含该字符串的变量）。
  * Output variable: 将变量命名为 `$twoFACode`。
* 结果：系统将根据时间加密算法立即计算出当前的 6 位数字代码（例如：`482915`），并将其存储在变量 `$twoFACode` 中。在此操作之后，您继续调用 Key press 命令，将变量 `$twoFACode` 传递到 Facebook 的验证码输入框中，即可成功登录。


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