一、 阳历算法
具体算法见函数void get_solar_day_date(void),这样阳历日历的星期排法就确定了。
表1:
变量定义:
- Public:
- Unsigned int temp_total_day;
- Unsigned char gc_solar_calendar_year;
- Unsigned char gc_solar_calendar_month;
- Unsigned char gc_solar_calendar_date;
- Unsigned char gc_lunar_calendar_year;
- Unsigned char gc_lunar_calendar_month;
- Unsigned char gc_lunar_calendar_date;
- Unsigned char start_day_of_week;
说明:函数get_solar_day_date(void)的输入变量:gc_solar_calendar_year和gc_solar_calendar_month
输出变量:start_day_of_week和temp_total_day
- Void get_solar_day_date(void)
- {
- unsigned char temp01;
- /*------calculate what day is the day of the current month and year. Mon~Sun?---*/
- /*条件初始化二次,减少运算数据量. temp_total_day 是int型变量*/
- start_day_of_week = 2; temp_total_day = 0;calculate_temp = 1;
- if(gc_solar_calendar_year > 99)
- {
- start_day_of_week = 6;calculate_temp = 100;
- }
- for(temp01 = calculate_temp; temp01<gc_solar_calendar_year; temp01++)
- {
- if(temp01%4 == 0){start_day_of_week +=2;temp_total_day += 366;
- }
- else {start_day_of_week +=1;temp_total_day += 365;
- }
- }
- for(temp01 = 1;temp01<gc_solar_calendar_month;temp01++)
- {
- switch(temp01)
- {
- case 1,3,5,7,8,10,12:
- start_day_of_week +=3;
- temp_total_day +=31;
- break;
- case 2:
- if(((gc_solar_calendar_year%4) == 0)&&(gc_solar_calendar_year != 200))
- {
- start_day_of_week +=1; temp_total_day +=29;
- }
- else {
- start_day_of_week +=0;temp_total_day +=28;
- }
- break;
- case 4,6,9,11:
- start_day_of_week +=2;
- temp_total_day +=30; break;
- }
- }
- start_day_of_week %=7;
- /*-end of calculate what day is the day(Mon~Sun?) and total day --*/
- }
二、 阴历算法
200年需要200 × 2 = 400个字节,构成阴历压缩数据表lunar_calendar_month_table[]如下
- const char lunar_calendar_month_table[]={ //从阴历年1900年到2100年
- /*the total day of each month pointer */
- //月份 1 2 3 4 5 6 7 8 9 10 11 12
- //闰年 31 29 31 30 31 30 31 31 30 31 30 31
- //非闰年 31 28 31 30 31 30 31 31 30 31 30 31
- /* from 1901~2100*/
- /* (0110)110000001001 (0110)leap month,110000001001
- lunar month total day: 1:29 0:30*/
- 0x00,0x04,0xad,0x08,0x5a,0x01,0xd5,0x54,0xb4,0x09,0x64,0x05,0x59,0x45,
- 0x95,0x0a,0xa6,0x04,0x55,0x24,0xad,0x08,0x5a,0x62,0xda,0x04,0xb4,0x05,
- 0xb4,0x55,0x52,0x0d,0x94,0x0a,0x4a,0x2a,0x56,0x02,0x6d,0x71,0x6d,0x01,
- 0xda,0x02,0xd2,0x52,0xa9,0x05,0x49,0x0d,0x2a,0x45,0x2b,0x09,0x56,0x01,
- 0xb5,0x20,0x6d,0x01,0x59,0x69,0xd4,0x0a,0xa8,0x05,0xa9,0x56,0xa5,0x04,
- 0x2b,0x09,0x9e,0x38,0xb6,0x08,0xec,0x74,0x6c,0x05,0xd4,0x0a,0xe4,0x6a,
- 0x52,0x05,0x95,0x0a,0x5a,0x42,0x5b,0x04,0xb6,0x04,0xb4,0x22,0x6a,0x05,
- 0x52,0x75,0xc9,0x0a,0x52,0x05,0x35,0x55,0x4d,0x0a,0x5a,0x02,0x5d,0x31,
- 0xb5,0x02,0x6a,0x8a,0x68,0x05,0xa9,0x0a,0x8a,0x6a,0x2a,0x05,0x2d,0x09,
- 0xaa,0x48,0x5a,0x01,0xb5,0x09,0xb0,0x39,0x64,0x05,0x25,0x75,0x95,0x0a,
- 0x96,0x04,0x4d,0x54,0xad,0x04,0xda,0x04,0xd4,0x44,0xb4,0x05,0x54,0x85,
- 0x52,0x0d,0x92,0x0a,0x56,0x6a,0x56,0x02,0x6d,0x02,0x6a,0x41,0xda,0x02,
- 0xb2,0xa1,0xa9,0x05,0x49,0x0d,0x0a,0x6d,0x2a,0x09,0x56,0x01,0xad,0x50,
- 0x6d,0x01,0xd9,0x02,0xd1,0x3a,0xa8,0x05,0x29,0x85,0xa5,0x0c,0x2a,0x09,
- 0x96,0x54,0xb6,0x08,0x6c,0x09,0x64,0x45,0xd4,0x0a,0xa4,0x05,0x51,0x25,
- 0x95,0x0a,0x2a,0x72,0x5b,0x04,0xb6,0x04,0xac,0x52,0x6a,0x05,0xd2,0x0a,
- 0xa2,0x4a,0x4a,0x05,0x55,0x94,0x2d,0x0a,0x5a,0x02,0x75,0x61,0xb5,0x02,
- 0x6a,0x03,0x61,0x45,0xa9,0x0a,0x4a,0x05,0x25,0x25,0x2d,0x09,0x9a,0x68,
- 0xda,0x08,0xb4,0x09,0xa8,0x59,0x54,0x03,0xa5,0x0a,0x91,0x3a,0x96,0x04,
- 0xad,0xb0,0xad,0x04,0xda,0x04,0xf4,0x62,0xb4,0x05,0x54,0x0b,0x44,0x5d,
- 0x52,0x0a,0x95,0x04,0x55,0x22,0x6d,0x02,0x5a,0x71,0xda,0x02,0xaa,0x05,
- 0xb2,0x55,0x49,0x0b,0x4a,0x0a,0x2d,0x39,0x36,0x01,0x6d,0x80,0x6d,0x01,
- 0xd9,0x02,0xe9,0x6a,0xa8,0x05,0x29,0x0b,0x9a,0x4c,0xaa,0x08,0xb6,0x08,
- 0xb4,0x38,0x6c,0x09,0x54,0x75,0xd4,0x0a,0xa4,0x05,0x45,0x55,0x95,0x0a,
- 0x9a,0x04,0x55,0x44,0xb5,0x04,0x6a,0x82,0x6a,0x05,0xd2,0x0a,0x92,0x6a,
- 0x4a,0x05,0x55,0x0a,0x2a,0x4a,0x5a,0x02,0xb5,0x02,0xb2,0x31,0x69,0x03,
- 0x31,0x73,0xa9,0x0a,0x4a,0x05,0x2d,0x55,0x2d,0x09,0x5a,0x01,0xd5,0x48,
- 0xb4,0x09,0x68,0x89,0x54,0x0b,0xa4,0x0a,0xa5,0x6a,0x95,0x04,0xad,0x08,
- 0x6a,0x44,0xda,0x04,0x74,0x05,0xb0,0x25,0x54,0x03,
- };
确定阳历日和阴历日的对应关系的算法:
对于其他任何一个阳历日和阴历日的对应关系,都可以通过以下算法求得结果。具体算法由如get_lunar_day(void)实现:
说明:函数get_lunar_day(void)的输入变量:gc_solar_calendar_year和gc_solar_calendar
输出变量:gc_lunar_calendar_year、gc_lunar_calendar_month和gc_lunar_calendar_date
- void get_lunar_day(void)/*计算出输入阳历年、阳历月,对应该阳历月第一天对应阴历时间年、月、日*/
- {
- unsigned char temp_leap_month;
- unsigned char temp_flag;
- unsigned char calculate_temp;
- unsigned char mc_tpumenus_temp_loop;
- unsigned char mc_tpumenus_temp_01;
- temp_leap_month = 0;temp_flag = 1;
- //条件初始化二次,减少运算数据量.
- if(gc_solar_calendar_year > 99)
- {
- gc_lunar_calendar_year = 99;gc_lunar_calendar_month = 11;
- gc_lunar_calendar_date = 25;temp_total_day += 25;calculate_temp = 100;
- }
- else
- {
- gc_lunar_calendar_year = 0;gc_lunar_calendar_month = 11;
- gc_lunar_calendar_date = 11;temp_total_day += 11;calculate_temp = 1;
- }
- if(gc_solar_calendar_year >calculate_temp||gc_solar_calendar_month>1)
- {
- for(mc_tpumenus_temp_loop = 1;mc_tpumenus_temp_loop>0;)
- {
- temp_total_day -=calendar_calculate_lunar_month_total_day();
- temp_leap_month = tpumenus_lunar_calendar_month_table[2*gc_lunar_calendar_year +
- temp_leap_month = (temp_leap_month>>4)&0x0F;
- if(gc_lunar_calendar_month == temp_leap_month)
- {
- switch(gc_lunar_calendar_year)
- {
- case 6,14,19,25,33,36,38,41,44,52,55,79,117,
- 136,147,150,155,158,185,193:
- if(temp_total_day<31)
- {
- gc_lunar_calendar_date = temp_total_day;
- mc_tpumenus_temp_loop = 0;temp_flag = 0;
- }
- else temp_total_day -= 30;
- break; //current month:temp_leap_month
- default:
- if(temp_total_day < 30)
- {
- gc_lunar_calendar_date = temp_total_day;mc_tpumenus_temp_loop = 0;
- temp_flag = 0; /*current month:temp_leap_month*/
- }
- else temp_total_day -= 29;
- break;
- }
- }
- if(temp_flag){gc_lunar_calendar_month++;
- if(gc_lunar_calendar_month == 13)
- {
- gc_lunar_calendar_month = 1;
- gc_lunar_calendar_year++;
- }
- if(temp_total_day < 61) //if temp_total_day>60,ignore compare
- {
- mc_tpumenus_temp_01 = calendar_calculate_lunar_month_total_day();
- if(temp_total_day < (mc_tpumenus_temp_01 + 1))
- {
- mc_tpumenus_temp_loop = 0;
- gc_lunar_calendar_date = temp_total_day;
- }
- }
- }
- }
- }
gc_lunar_leap_month = (temp_flag<<4)|temp_leap_month;/*set leap_month flag*/
说明:函数calendar_calculate_lunar_month_total_day(void)根据输入变量gc_lunar_calen和gc_lunar_calendar_month,结合压缩数据表lunar_calendar_month_table计算出对应阴历天数。