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							- export const ROW_HEIGHT = 64;
 
- export function formatMonthTitle(date) {
 
-     if (!(date instanceof Date)) {
 
-         date = new Date(date);
 
-     }
 
-     return `${date.getFullYear()}年${date.getMonth() + 1}月`;
 
- }
 
- export function compareMonth(date1, date2) {
 
-     if (!(date1 instanceof Date)) {
 
-         date1 = new Date(date1);
 
-     }
 
-     if (!(date2 instanceof Date)) {
 
-         date2 = new Date(date2);
 
-     }
 
-     const year1 = date1.getFullYear();
 
-     const year2 = date2.getFullYear();
 
-     const month1 = date1.getMonth();
 
-     const month2 = date2.getMonth();
 
-     if (year1 === year2) {
 
-         return month1 === month2 ? 0 : month1 > month2 ? 1 : -1;
 
-     }
 
-     return year1 > year2 ? 1 : -1;
 
- }
 
- export function compareDay(day1, day2) {
 
-     if (!(day1 instanceof Date)) {
 
-         day1 = new Date(day1);
 
-     }
 
-     if (!(day2 instanceof Date)) {
 
-         day2 = new Date(day2);
 
-     }
 
-     const compareMonthResult = compareMonth(day1, day2);
 
-     if (compareMonthResult === 0) {
 
-         const date1 = day1.getDate();
 
-         const date2 = day2.getDate();
 
-         return date1 === date2 ? 0 : date1 > date2 ? 1 : -1;
 
-     }
 
-     return compareMonthResult;
 
- }
 
- export function getDayByOffset(date, offset) {
 
-     date = new Date(date);
 
-     date.setDate(date.getDate() + offset);
 
-     return date;
 
- }
 
- export function getPrevDay(date) {
 
-     return getDayByOffset(date, -1);
 
- }
 
- export function getNextDay(date) {
 
-     return getDayByOffset(date, 1);
 
- }
 
- export function getToday() {
 
-     const today = new Date();
 
-     today.setHours(0, 0, 0, 0);
 
-     return today;
 
- }
 
- export function calcDateNum(date) {
 
-     const day1 = new Date(date[0]).getTime();
 
-     const day2 = new Date(date[1]).getTime();
 
-     return (day2 - day1) / (1000 * 60 * 60 * 24) + 1;
 
- }
 
- export function copyDates(dates) {
 
-     if (Array.isArray(dates)) {
 
-         return dates.map((date) => {
 
-             if (date === null) {
 
-                 return date;
 
-             }
 
-             return new Date(date);
 
-         });
 
-     }
 
-     return new Date(dates);
 
- }
 
- export function getMonthEndDay(year, month) {
 
-     return 32 - new Date(year, month - 1, 32).getDate();
 
- }
 
- export function getMonths(minDate, maxDate) {
 
-     const months = [];
 
-     const cursor = new Date(minDate);
 
-     cursor.setDate(1);
 
-     do {
 
-         months.push(cursor.getTime());
 
-         cursor.setMonth(cursor.getMonth() + 1);
 
-     } while (compareMonth(cursor, maxDate) !== 1);
 
-     return months;
 
- }
 
 
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