出現這種情況的原因是：刷單、賬戶密碼過於簡單、可能存在異地登陸及發布廣告信息等情況。
壹般針對此類情況，解決步驟如下：
1、打開淘寶，輸入賬號及密碼，登錄後就會彈出以下頁面，點擊“請點此進行驗證”，進入下壹步。
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2、然後依照系統要求再次輸入登錄名及驗證碼，然後點擊“確定”，進入下壹步。
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3、在彈出的頁面，可看到“通過輸入手機驗證”選項，點擊“立即驗證”，進入下壹步。
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4、接著輸入淘寶賬號綁定的手機號，點擊“確定”進行驗證。
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5、最後，在已綁定淘寶的手機號上，按頁面提示，編輯短信發送至相關號碼完成驗證。收到系統驗證成功的提示後，即可完成校驗，此時賬號就可以正常登錄了。
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/consumerservice.taobao.com/self-help?spm=a21pu.8253647.0.0.3a11480djCwBnh#page=second-list&catId=9005447"target="_blank"title="只支持選中壹個鏈接時生效">淘寶網服務中心-賬號無法登陸