1、打開小米7手機，然後打開手機支付寶的軟件，在我的個人主頁上點擊銀行卡的選項。
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2、進入銀行卡頁面後就可以看到以前綁定的銀行卡，那麽信用卡的添加方式也是和銀行卡壹樣的，同樣點擊頁面上方右側的加號按鈕。
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3、然後在添加銀行卡頁面上輸入信用卡卡號，再點擊下壹步進入。在填寫銀行卡信息中點擊同意協議並綁卡。
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4、就進入驗證手機號頁面了，信用卡銀行官方就會發送壹條開通信用卡快捷支付的動態密碼，將這條動態密碼輸入到效驗碼後的輸入框中，再點擊下壹步。
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5、接著支付寶就會提示添加成功了，點擊完成即可。這時候就會返回到銀行卡頁面，就會看到添加的信用卡已經顯示在頁面上了，說明信用卡已經成功綁定支付寶了。
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