壹、在手機桌面打開“京東”App。
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二、打開京東後，點擊“購物車”進入。
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三、選擇需要購買的商品後點擊“去結算”。
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四、在“填寫訂單”界面點擊“優惠券”。
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五、選擇想要進行使用的優惠券後點擊“確定”。
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六、最後就可以看到在“優惠券”壹欄以及進行了相應的折扣，點擊“提交訂單”即可。
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