uni-app如何实现rem自适应手机屏幕尺寸？

Question

uni-app里是可使用upx自动适应屏幕，可我一开始写的是Html，后面因为有需要，所以才转去了Uni-app，可是在Html中写好的rem自适应转换px无法使用，在网页上运行是没有问题的，但在真机测试中无法运行，这是为什么呢？

window.onload = function() {

setRem();

};

window.onreset = function() {

setRem();

};

/* 设置字体rem */

function setRem() {

var width = document.body.offsetWidth; // 获取当前页面的宽度

var nowFont = width / 375 * 37.5; // 通过标签名称来获取元素 

var htmlFont = document.getElementsByTagName('html')[0]; // 给获取到的元素的字体大小赋值

htmlFont.style.fontSize = nowFont + "px";

}

Answer 1

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