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let query = wx.createSelectorQuery();query.select('.content').boundingClientRect(rect=>{ let height = rect.height; console.log(height);}).exec(); // .exec() 不加不执行
let query = wx.createSelectorQuery();query.select('.content').boundingClientRect(rect=>{ let clientHeight = rect.height; let clientWidth = rect.width; let ratio = 750 / clientWidth; let height = clientHeight * ratio; console.log(height);}).exec();
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