将开通ETC功能的银行卡绑定支付宝即可，操作方法如下：
1、在手机桌面上打开支付宝客户端，点击页面右下角的我的。
/iknow-pic.cdn.bcebos.com/d000baa1cd11728b34dcfd3dc7fcc3cec3fd2c3f"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d000baa1cd11728b34dcfd3dc7fcc3cec3fd2c3f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/d000baa1cd11728b34dcfd3dc7fcc3cec3fd2c3f"/>
2、进入我的页面后，点击箭头所指的银行卡。
/iknow-pic.cdn.bcebos.com/cdbf6c81800a19d8eba7f71a3cfa828ba61e460c"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/cdbf6c81800a19d8eba7f71a3cfa828ba61e460c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/cdbf6c81800a19d8eba7f71a3cfa828ba61e460c"/>
3、在随后出现的页面里，点击页面右上角的＋。
/iknow-pic.cdn.bcebos.com/500fd9f9d72a6059de6892052734349b033bbab1"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/500fd9f9d72a6059de6892052734349b033bbab1?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/500fd9f9d72a6059de6892052734349b033bbab1"/>
4、接下来，按照提示输入相关信息，点击下一步。
/iknow-pic.cdn.bcebos.com/024f78f0f736afc3da974c7abc19ebc4b7451211"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/024f78f0f736afc3da974c7abc19ebc4b7451211?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/024f78f0f736afc3da974c7abc19ebc4b7451211"/>
5、随后，阅读协议，绑定卡即可在支付宝平台上使用ETC。
/iknow-pic.cdn.bcebos.com/eac4b74543a98226654a58388582b9014a90eb22"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/eac4b74543a98226654a58388582b9014a90eb22?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/eac4b74543a98226654a58388582b9014a90eb22"/>