<template> <div class='home-page'>内容</div> </template> <script > import { defineComponent, onMounted } from 'vue' export default defineComponent({ setup () { function getCurrentMonthFirst () { var date = new Date() date.setDate(1) var month = parseInt(date.getMonth() + 1) console.log(month) var day = date.getDate() if (month < 10) { month = '0' + month } if (day < 10) { day = '0' + day } console.log(day) console.log(date.getFullYear() + '-' + month + '-' + day) return date.getFullYear() + '-' + month + '-' + day } function getCurrentMonthLast () { var date = new Date() var currentMonth = date.getMonth() console.log('currentMonth', currentMonth) var nextMonth = ++currentMonth console.log('currentMonth', nextMonth) var nextMonthFirstDay = new Date(date.getFullYear(), nextMonth, 1) console.log('nextMonthFirstDay', nextMonthFirstDay) var oneDay = 1000 * 60 * 60 * 24 var lastTime = new Date(nextMonthFirstDay - oneDay) console.log(lastTime) var month = parseInt(lastTime.getMonth() + 1) var day = lastTime.getDate() if (month < 10) { month = '0' + month } if (day < 10) { day = '0' + day } console.log(date.getFullYear() + '-' + month + '-' + day) return date.getFullYear() + '-' + month + '-' + day } onMounted(() => { getCurrentMonthFirst() getCurrentMonthLast() }) return { getCurrentMonthFirst, getCurrentMonthLast } } }) </script> <style lang='less'> .home-page { height: 100px; border: 1px solid red; } </style>