// ==UserScript==
// @name         fc改名11
// @namespace    https://bbs.tampermonkey.net.cn/
// @version      0.1.0
// @description  try to take over the world!
// @author       You
// @match        https://ticket-sharing.com/deals/*/certificate
// ==/UserScript==

var changen=function(){
console.log("1")
var name=document.querySelectorAll('.buyer')
console.log(name)
name[0].innerText="WANG AHUI 様";


}

changen();