2fa验证 双重验证码/二步验证码获取工具（相当于谷歌身份验证器的网页版），使用时任选1种方式输入密钥获取即可。 点击获取验证码 JS实现

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2fa 通过组合以下三种身份识别类型中的两种来工作： Something You Know : 这可以是密码、个人识别码 (PIN) 或安全问题的答案。 Something You Have : 这可以是物理物品，如银行卡、移 …