nuxt3-gw/public/isMobile.js

;(function () {
  // 判断移动端
  var sUserAgent = navigator.userAgent.toLowerCase()
  if (/ipad|iphone|midp|rv:1.2.3.4|ucweb|android|windows ce|windows mobile/.test(sUserAgent)) {
    //跳转移动端页面
    if (window.location.href.indexOf('mobile') < 0) {
      if(window.location.pathname =='/'){
        window.location.replace('/m_user') //跳转后没有后退功能
        }
    }
  } else {
        // PC端
       console.log('pc',)
  }
})()