判断当前时间是否在某个时间区间内

function isDuringDate () {
        var curDate = new Date() //当前时间
			if (curDate >= new Date('2021-5-18 00:00') && curDate <= new Date('2021-5-18 08:30'))return true
			if (curDate >= new Date('2021-5-18 10:00') && curDate <= new Date('2021-5-18 16:30'))return true
			if (curDate >= new Date('2021-5-18 20:00') && curDate <= new Date('2021-5-18 23:30'))return true
}

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