js_日期格式解析

1. Current month of the year format mm
   CURRENT_MONTH_YEAR

Date now = new Date();
int month = now.getMonth() + 1;
String monthStr = month.toString();
if (month < 10) monthStr = '0' + monthStr;
returnValue(monthStr);

2. Current year format yyyy

Date now = new Date();
int year = now.getYear() + 1900;
String yearStr = year.toString();
returnValue(yearStr);

3. Current month format mm/yyyy

Date now = new Date();
int month = now.getMonth() + 1;
String monthStr = month.toString();
if (month < 10) monthStr = '0' + monthStr;
int year = now.getYear() + 1900;
String toReturn = monthStr + '/' + year.toString();
returnValue(toReturn);

4. Current date format dd/mm/yyyy

Date now = new Date();
int day = now.getDate();
String dayStr = day.toString();
if (day < 10) dayStr = '0' + dayStr;
int month = now.getMonth() + 1;
String monthStr = month.toString();
if (month < 10) monthStr = '0' + monthStr;
int year = now.getYear() + 1900;
String toReturn = dayStr + '/' + monthStr + '/' + year.toString();
returnValue(toReturn);