本文共 924 字，大约阅读时间需要 3 分钟。

代码

export function funDate (timeInterval) {  var currDate = new Date()  let year = currDate.getFullYear()  let month = currDate.getMonth() + 1  let day = currDate.getDate()  if (parseInt(month) < 10) {    month = '0' + month  }  if (parseInt(day) < 10) {    day = '0' + day  }  var formatCurrDate = year + '-' + month + '-' + day// time1表示当前时间来  console.log('formatCurrDate: ' + formatCurrDate)  var beforeOneWeekDate = new Date(currDate)  beforeOneWeekDate.setDate(currDate.getDate() - timeInterval)  let year2 = beforeOneWeekDate.getFullYear()  let month2 = beforeOneWeekDate.getMonth() + 1  let day2 = beforeOneWeekDate.getDate()  if (parseInt(month2) < 10) {    month2 = '0' + month2  }  if (parseInt(day2) < 10) {    day2 = '0' + day2  }  var formatBeforeOneWeekDate = year2 + '-' + month2 + '-' + day2  console.log('formatBeforeOneWeekDate: ' + formatBeforeOneWeekDate)  return formatBeforeOneWeekDate}

调用方法

funDate(7)

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