1.获取方法
onLoad: function (e) { var that = this; wx.createSelectorQuery().select(‘#the-id‘).boundingClientRect(function (rect) { that.setData({ container_width: Number(rect.width) / 7 }); }).exec() },
2.打印结果
原文：https://www.cnblogs.com/wanan-01/p/9042465.html