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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                通過時間日期查詢 周次 ``` function getweek(z) { let day = Date.parse(z); //如果不是當年的第一天不是星期一,則該日所屬周數為上一年的最后一周 day = new Date(day); if (day.getDay() !== 1) { day = day.getTime() - 24 * 60 * 60 * 1000 day = new Date(day); } day.setMonth(0); day.setDate(1); day.setHours(0); day.setMinutes(0); day.setSeconds(0);//到這里就得到該年的一月一日 let today = Date.parse(z); today = new Date(today); let todayWeek = today.getDay() //計算日期是一年中的第幾天 let rankDay = Math.ceil((today.getTime() - day.getTime()) / (1000 * 24 * 60 * 60)) let rankWeek = Math.ceil(rankDay / 7) rankWeek = rankWeek < 10 ? ("0" + rankWeek) : rankWeek let year = day.getFullYear().toString() return year + rankWeek } getweek(new Date()) getweek('2019-05-05') //201918 ```
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