不一样的。
支付宝账号一般都是注册淘宝会员时用的那个邮箱地址；淘宝用户名只是登录淘宝或登录阿里旺旺的名称。而且，淘宝的号是一个会员号。
在开通淘宝的时候会赠送一个支付宝，但是不意味是同一个帐号，支付宝的帐号是要用邮箱或者手机号认领的。所以，在得到一个和淘宝绑定的支付宝后，可以更改支付宝的邮箱或者手机号，获得一个全新的支付宝，这样就和淘宝的帐号分开来了。
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扩展资料
新注册淘宝的用户绑定支付宝的方法：
1、登录淘宝首页，在左上角点击“免费注册”。
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2、填写淘宝会员名、登录密码等信息
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3、填写已经注册过支付宝账户的手机号码；去掉【同意支付宝协议并同步创建支付宝账户】的勾；获取验证码。
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4、输入手机收到的验证码，等待校验成功后，淘宝账号就注册成功了。使用淘宝会员名和手机号码都可以登录。
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5、在“账户设置—账户绑定”中，点击“支付宝绑定”
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6、登录到刚注册好的淘宝账户，点击“我的淘宝”→“账号管理”→“支付宝账户管理”
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7、如图所示，绑定成功。
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参考资料：/cshall.alipay.com/lab/help_detail.htm?help_id=256656"target="_blank"title="淘宝账户绑定支付宝账户——支付宝服务大厅">淘宝账户绑定支付宝账户——支付宝服务大厅