animate(offset)?{????????//?定義切換時(shí)間為1000毫秒?1秒????????const?time?=?1000????????????//稍微移動(dòng)為0.1秒????????const?rate?=?100????????????//計(jì)算移動(dòng)距離????????let?speed?=?offset?/?(time?/?rate)????????????//?計(jì)算目標(biāo)位置使用parseFloat去掉單位????????let?goal?=?parseFloat(this.picBox.style.left)?-?offset????????this.animated?=?true????????//判斷是否到達(dá)目標(biāo)位置????????let?animate?=?setInterval(()?=>?{?//計(jì)算去掉單位的目標(biāo)絕對值減去目標(biāo)位置的絕對值小于移動(dòng)距離的絕對值????????????if?(this.picBox.style.left?==?goal?||?Math.abs(Math.abs(parseFloat(this.picBox.style.left))?-?Math.abs(goal))?<?Math.abs(speed))?{????????????????this.picBox.style.left?==?goal????????????????clearInterval(animate)????????????????this.animated?=?false????????????????if?(parseFloat(this.picBox.style.left)?==?0)?{????????????????????this.picBox.style.left?=?-this.sliders?*?this.sliderWidth?+?"px"????????????????}?else?if?(parseFloat(this.picBox.style.left)?==?-(this.sliders?+?1)?*?this.sliderWidth)?{????????????????????this.picBox.style.left?=?-this.sliderWidth?+?"px"????????????????}????????????}?else?{????????????????//未到達(dá)目標(biāo)位置繼續(xù)移動(dòng)????????????????this.picBox.style.left?=?parseFloat(this.picBox.style.left)?-?speed?+?"px"????????????}????????},?rate)????}

我的理解在注釋里和你的基本一致