console.log(window.navigator)
console.log(window.navigator.userAgent)
console.log(window.location)
//经常使用的方法，跳转页面
window.location.href = 'https://www.luffycity.com'
//是全局刷新，尽量少用 == 》 对应的有 局部刷新
window.location.reload();
setTimeout(function(){
window.location.reload();
},3000)