一个支付宝账号能绑定多张银行卡。
第一步：在手机菜单功能页找到支付宝软件图标，点击打开。
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第二步：在支付宝“我的”功能页，找到“银行卡”功能选项，点击进入。
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第三步：进入“我的银行卡”功能页面，选择右上方箭头所指处的“+”，用来添加所需要的银行卡。
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第四步：在添加页面输入自己需要添加的银行卡卡号，点击“下一步”就完成了。
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反复操作全部步骤即可完成添加多张银行卡。