新建rem.js
(function(win) {
var tid;
function refreshRem() {
let designSize = 1080; // 设计图尺寸
let html = document.documentElement;
let wW = html.clientWidth;// 窗口宽度
let rem = wW * 100 / designSize;
document.documentElement.style.fontSize = rem + 'px';
}
win.addEventListener('resize', function() {
clearTimeout(tid);
tid = setTimeout(refreshRem, 300);
}, false);
win.addEventListener('pageshow', function(e) {
if (e.persisted) {
clearTimeout(tid);
tid = setTimeout(refreshRem, 300);
}
}, false);
refreshRem();
})(window);
main.js中引入即可
标签：function,适配,PC,let,rem,tid,win,refreshRem From： https://www.cnblogs.com/-123456/p/16708552.html