自定義組件

let outter = uni.createSelectorQuery().in(this).select('#outter');
outter.fields({size:true},data => {
  console.log(data.height);
}).exec()

框架預(yù)設(shè)組件

let outter = uni.createSelectorQuery().select('#outter');
outter.fields({size:true},data => {
  console.log(data.height);
}).exec()

參考文檔：https://uniapp.dcloud.io/api/ui/nodes-info