模仿现实生活中的挂历. 当前页以系统当前日期的月份为准显示当前月的每一天(显示出日及对应的星期几). 当系统日期变到下一月时,系统自动翻页到下一月 -Mimic the real life calendar. This page every day of the current month of the current system date month (showing the date and the corresponding day of the week) when th