支付宝付款，绑定了银行卡就可以使用了。
1、打开手机支付宝，在底端的我的里面找到银行卡。
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2、进入银行卡页面后点击右上角的“+”号，添加银行卡。
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3、填写支付宝实名认证本人的银行卡号，点下一步。
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4、这个时候就是填写银行卡预留手机号码，点下一步。这样就绑定好了银行卡。
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5、然后在到支付宝的首页里面，点左上角的扫一扫，扫描个人或者是商家的收钱码就可以付款了。
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