js页面
//创建节点选择器
var query = wx.createSelectorQuery();
//选择id
var that = this;
query.select('.every').boundingClientRect(function (rect) {
// console.log(rect.width)
that.setData({
height: rect.width + 'px'
})
}).exec();
wxml页面
<view class='every' style='height:{{height}}'></view>
原文链接：https://blog.csdn.net/qq_35181466/article/details/80701767