一、若添加了好友,可以请好友在其好友栏中直接查询QQ号码;二、若记得QQ昵称,可以尝试登录其他QQ号码用“查询”功能查找;三、使用手机帐号进行注册的,那么该QQ号码是和手机自动绑定卖烂嫌的,可以直接使用当时接收验证码的手机号码登录QQ即可;四、查看登录QQ号码的电脑,在QQ安装目录下有没有的QQ号码的文件夹,具体方法如下:1、首先在电脑桌面点击“此电脑”,如图。/iknow-pic.cdn.bcebos.com/377adab44aed2e73397ce3c78901a18b86d6fa40"target="_blank">/iknow-pic.cdn.bcebos.com/中手377adab44aed2e73397ce3c78901a18b86d6fa40?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/377adab44aed2e73397ce3c78901a18b86d6fa40"/>2、然后选择“文档”选项,如图。/iknow-pic.cdn.bcebos.com/71cf3bc79f3df8dcb5d5ea7ac311728b46102874"target="_blank">/iknow-pic.cdn.bcebos.com/71cf3bc79f3df8dcb5d5ea7ac311728b46102874?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/71cf3bc79f3df8dcb5d5ea7ac311728b46102874"/>3、接着打开下图红框内的文件夹进入,如图。/iknow-pic.cdn.bcebos.com/3801213fb80e7bec757c660a212eb9389a506bb2"target="_blank">/iknow-pic.cdn.bcebos.com/3801213fb80e7bec757c660a212eb9389a506bb2?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/3801213fb80e7bec757c660a212eb9389a506bb2"/>历郑4、进入以后就可以查看到在电脑上登录过的QQ号码了,如图。/iknow-pic.cdn.bcebos.com/8b13632762d0f7035e58f03706fa513d2797c577"target="_blank">/iknow-pic.cdn.bcebos.com/8b13632762d0f7035e58f03706fa513d2797c577?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/8b13632762d0f7035e58f03706fa513d2797c577"/>五、若已经设置QQ邮箱为辅助帐号,输入邮箱帐号和QQ密码就可以正常登录,登录成功后,此页面就会显示QQ号码。参考资料来源:/kf.qq.com/faq/120509Uvu67N140915Yr2mUJ.html"target="_blank">腾讯客服-QQ号码注册成功后忘记/遗忘QQ号码怎么办?