const defaultOptions = { selector: '#poster' }; function Poster(options = {}) { options = { ...defaultOptions, ...options, }; const pages = getCurrentPages(); const ctx = pages[pages.length - 1]; const poster = ctx.selectComponent(options.selector); delete options.selector; return poster; }; Poster.create = () => { const poster = Poster(); if (!poster) { console.error('请设置组件的id="poster"!!!'); } else { return Poster().onCreate(); } } export default Poster;