// excel读取2018/01/01这种时间格式是会将它装换成数字类似于46254.1545151415 numb是传过来的整数数字,format是之间间隔的符号
formatDate(numb, format) {
const time = new Date((numb - 1) * 24 * 3600000 + 1)
time.setYear(time.getFullYear() - 70)
const year = time.getFullYear() + ''
const month = time.getMonth() + 1 + ''
const date = time.getDate() - 1 + ''
if (format && format.length === 1) {
return year + format + month + format + date
}
return year + (month < 10 ? '0' + month : month) + (date < 10 ? '0' + date : date)
},
console.log(formatDate(42618, '/')) // 2016-9-5
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