题解 | #计算日期到天数转换#
计算日期到天数转换
https://www.nowcoder.com/practice/769d45d455fe40b385ba32f97e7bcded
let dataStr = readline()
let dataArr = dataStr.split(' ')
const year = Number(dataArr[0])
const month = Number(dataArr[1])
const day = Number(dataArr[2])
// 总天数
let allDay = 0
// 是否是闰年
const leapYear = year % 400 == 0 || year % 100 != 0 && year % 4 == 0
for(let i=1; i<month; i++) {
// 9月开始是：单数为小月，双数为大月
const flag = i > 8
if(flag ? i % 2 != 0 : i % 2 == 0) {
if(i == 2) {
if(leapYear) {
allDay += 29
}else {
allDay += 28
}
}else if(i == 8) {
allDay += 31
}else {
allDay += 30
}
}else {
allDay += 31
}
}
const res = day + allDay
console.log(res)
