支付宝可以通过添加银行卡的功能绑定信用卡。
支付宝添加信用卡步骤：
1、打开支付宝主页面，找到上方搜索框。
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2、在搜索框中输入银行卡，点击右下角搜索。
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3、在搜索出的结果页面中，选择如图所示，点击进入。
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4、在我的银行卡页面，点击右上角图标，进入添加银行卡页面。
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https://iknow-pic.cdn.bcebos.com/48540923dd54564e65fa4f9fbdde9c82d0584ffd"/>
5、正确输入你要添加的信用卡卡号，点击下一步，按照提示，即可成功绑定信用卡，进而用绑定的信用卡支付。
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