自适应代码

adapterFunc(){
(function (win) {
document.body.style.zoom = 1;
// document.body.style = width:1920px!important; height:960px!important;overflow: hidden;
function refreshScale () {
let docWidth = document.documentElement.clientWidth;
let docHeight = document.documentElement.clientHeight;
var designWidth = 1920,
designHeight = 960,
widthRatio = docWidth / designWidth,
heightRatio = docHeight / designHeight;
document.body.style.zoom = widthRatio;
// document.body.style = "width:1920px!important; height:960px!important;transform:scale(" + widthRatio + "," + heightRatio + ");transform-origin:left top;";
// 应对浏览器全屏切换前后窗口因短暂滚动条问题出现未占满情况
setTimeout(function () {
var lateWidth = document.documentElement.clientWidth,
lateHeight = document.documentElement.clientHeight;
if (lateWidth === docWidth) return;
widthRatio = lateWidth / designWidth;
heightRatio = lateHeight / designHeight;
document.body.style.zoom = widthRatio;
// document.body.style = "width:1920px!important; height:960px!important;transform:scale(" + widthRatio + "," + heightRatio + ");transform-origin:left top;";
}, 0);
};
refreshScale();
win.addEventListener("pageshow", function (e) {
if (e.persisted) { // 浏览器后退的时候重新计算
refreshScale();
}
}, false);
win.addEventListener("resize", refreshScale, false);
})(window);
}