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公历农历转换算法

发布时间：2012-05-03 14:11:37 来源：文档文库

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采用查表的方法实现农历与公历的转换，可以坚持50年，50年以后可以补充表继续使用，当然50年以后什么样子都不知道，这个方法可能早淘汰了。哈哈！ #define uchar unsigned char #define uint unsigned int #include /* 公历年对应的农历数据,每年三字节, 格式第一字节BIT7-4 位表示闰月月份,值为0 为无闰月,BIT3-0 对应农历第1-4 月的大小第二字节BIT7-0 对应农历第5-12 月大小,第三字节BIT7 表示农历第13 个月大小月份对应的位为1 表示本农历月大(30 天),为0 表示小(29 天) 第三字节BIT6-5 表示春节的公历月份,BIT4-0 表示春节的公历日期 */ code uchar year_code[597]={ 0x04,0xAe,0x53, //1901 0 0x0A,0x57,0x48, //1902 3 0x55,0x26,0xBd, //1903 6 0x0d,0x26,0x50, //1904 9 0x0d,0x95,0x44, //1905 12 0x46,0xAA,0xB9, //1906 15 0x05,0x6A,0x4d, //1907 18 0x09,0xAd,0x42, //1908 21 0x24,0xAe,0xB6, //1909 0x04,0xAe,0x4A, //1910 0x6A,0x4d,0xBe, //1911 0x0A,0x4d,0x52, //1912 0x0d,0x25,0x46, //1913 0x5d,0x52,0xBA, //1914 0x0B,0x54,0x4e, //1915 0x0d,0x6A,0x43, //1916 0x29,0x6d,0x37, //1917 0x09,0x5B,0x4B, //1918 0x74,0x9B,0xC1, //1919 0x04,0x97,0x54, //1920 0x0A,0x4B,0x48, //1921 0x5B,0x25,0xBC, //1922 0x06,0xA5,0x50, //1923 0x06,0xd4,0x45, //1924 0x4A,0xdA,0xB8, //1925 0x02,0xB6,0x4d, //1926 0x09,0x57,0x42, //1927 0x24,0x97,0xB7, //1928 0x04,0x97,0x4A, //1929 0x66,0x4B,0x3e, //1930 0x0d,0x4A,0x51, //1931 0x0e,0xA5,0x46, //1932 0x56,0xd4,0xBA, //1933 0x05,0xAd,0x4e, //1934 0x02,0xB6,0x44, //1935 0x39,0x37,0x38, //1936 0x09,0x2e,0x4B, //1937 0x7C,0x96,0xBf, //1938 0x0C,0x95,0x53, //1939 0x0d,0x4A,0x48, //1940 0x6d,0xA5,0x3B, //1941 0x0B,0x55,0x4f, //1942 0x05,0x6A,0x45, //1943 0x4A,0xAd,0xB9, //1944 0x02,0x5d,0x4d, //1945 0x09,0x2d,0x42, //1946 0x2C,0x95,0xB6, //1947 0x0A,0x95,0x4A, //1948 0x7B,0x4A,0xBd, //1949 0x06,0xCA,0x51, //1*** 0x0B,0x55,0x46, //1951 0x55,0x5A,0xBB, //1952 0x04,0xdA,0x4e, //1953 0x0A,0x5B,0x43, //1954 0x35,0x2B,0xB8, //1955 0x05,0x2B,0x4C, //1956 0x8A,0x95,0x3f, //1957 0x0e,0x95,0x52, //1958 0x06,0xAA,0x48, //1959 0x7A,0xd5,0x3C, //1960 0x0A,0xB5,0x4f, //1961 0x04,0xB6,0x45, //1962 0x4A,0x57,0x39, //1963 0x0A,0x57,0x4d, //1964 0x05,0x26,0x42, //1965 0x3e,0x93,0x35, //1966 0x0d,0x95,0x49, //1967 0x75,0xAA,0xBe, //1968 0x05,0x6A,0x51, //1969 0x09,0x6d,0x46, //1970 0x54,0xAe,0xBB, //1971 0x04,0xAd,0x4f, //1972 0x0A,0x4d,0x43, //1973 0x4d,0x26,0xB7, //1974 0x0d,0x25,0x4B, //1975 0x8d,0x52,0xBf, //1976 0x0B,0x54,0x52, //1977 0x0B,0x6A,0x47, //1978 0x69,0x6d,0x3C, //1979 0x09,0x5B,0x50, //1980 0x04,0x9B,0x45, //1981 0x4A,0x4B,0xB9, //1982 0x0A,0x4B,0x4d, //1983 0xAB,0x25,0xC2, //1984 0x06,0xA5,0x54, //1985 0x06,0xd4,0x49, //1986 0x6A,0xdA,0x3d, //1987 0x0A,0xB6,0x51, //1988 0x09,0x37,0x46, //1989 0x54,0x97,0xBB, //1990 0x04,0x97,0x4f, //1991 0x06,0x4B,0x44, //1992 0x36,0xA5,0x37, //1993 0x0e,0xA5,0x4A, //1994 0x86,0xB2,0xBf, //1995 0x05,0xAC,0x53, //1996 0x0A,0xB6,0x47, //1997 0x59,0x36,0xBC, //1998 0x09,0x2e,0x50, //1999 294 0x0C,0x96,0x45, //2000 297 0x4d,0x4A,0xB8, //2001 0x0d,0x4A,0x4C, //2002 0x0d,0xA5,0x41, //2003 0x25,0xAA,0xB6, //2004 0x05,0x6A,0x49, //2005 0x7A,0xAd,0xBd, //2006 0x02,0x5d,0x52, //2007 0x09,0x2d,0x47, //2008 0x5C,0x95,0xBA, //2009 0x0A,0x95,0x4e, //2010 0x0B,0x4A,0x43, //2011 0x4B,0x55,0x37, //2012 0x0A,0xd5,0x4A, //2013 0x95,0x5A,0xBf, //2014 0x04,0xBA,0x53, //2015 0x0A,0x5B,0x48, //2016 0x65,0x2B,0xBC, //2017 0x05,0x2B,0x50, //2018 0x0A,0x93,0x45, //2019 0x47,0x4A,0xB9, //2020 0x06,0xAA,0x4C, //2021 0x0A,0xd5,0x41, //2022 0x24,0xdA,0xB6, //2023 0x04,0xB6,0x4A, //2024 0x69,0x57,0x3d, //2025 0x0A,0x4e,0x51, //2026 0x0d,0x26,0x46, //2027 0x5e,0x93,0x3A, //2028 0x0d,0x53,0x4d, //2029 0x05,0xAA,0x43, //2030 0x36,0xB5,0x37, //2031 0x09,0x6d,0x4B, //2032 0xB4,0xAe,0xBf, //2033 0x04,0xAd,0x53, //2034 0x0A,0x4d,0x48, //2035 0x6d,0x25,0xBC, //2036 0x0d,0x25,0x4f, //2037 0x0d,0x52,0x44, //2038 0x5d,0xAA,0x38, //2039 0x0B,0x5A,0x4C, //2040 0x05,0x6d,0x41, //2041 0x24,0xAd,0xB6, //2042 0x04,0x9B,0x4A, //2043 0x7A,0x4B,0xBe, //2044 0x0A,0x4B,0x51, //2045 0x0A,0xA5,0x46, //2046 0x5B,0x52,0xBA, //2047 0x06,0xd2,0x4e, //2048 0x0A,0xdA,0x42, //2049 }; ///月份数据表 code uchar day_code1[9]={0x0,0x1f,0x3b,0x5a,0x78,0x97,0xb5,0xd4,0xf3}; code uint day_code2[3]={0x111,0x130,0x14e}; /* 函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年) 调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun) 如:计算2004年10月16日Conversion(0,0x4,0x10,0x16); c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世纪,c_sun=1为19世纪调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据 */ bit c_moon; data uchar year_moon,month_moon,day_moon,week; /*子函数,用于读取数据表中农历月的大月或小月,如果该月为大返回1,为小返回0*/ bit get_moon_day(uchar month_p,uint table_addr) { uchar temp; switch (month_p){ case 1:{temp=year_code[table_addr]&0x08; if (temp==0)return(0);else return(1);} case 2:{temp=year_code[table_addr]&0x04; if (temp==0)return(0);else return(1);} case 3:{temp=year_code[table_addr]&0x02; if (temp==0)return(0);else return(1);} case 4:{temp=year_code[table_addr]&0x01; if (temp==0)return(0); else return(1);} case 5:{temp=year_code[table_addr+1]&0x80; if (temp==0) return(0);else return(1);} case 6:{temp=year_code[table_addr+1]&0x40; if (temp==0)return(0);else return(1);} case 7:{temp=year_code[table_addr+1]&0x20; if (temp==0)return(0);else return(1);} case 8:{temp=year_code[table_addr+1]&0x10; if (temp==0)return(0);else return(1);} case 9:{temp=year_code[table_addr+1]&0x08; if (temp==0)return(0);else return(1);} case 10:{temp=year_code[table_addr+1]&0x04; if (temp==0)return(0);else return(1);} case 11:{temp=year_code[table_addr+1]&0x02; if (temp==0)return(0);else return(1);} case 12:{temp=year_code[table_addr+1]&0x01; if (temp==0)return(0);else return(1);} case 13:{temp=year_code[table_addr+2]&0x80; if (temp==0)return(0);else return(1);} } } /* 函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年) 调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun) 如:计算2004年10月16日Conversion(0,0x4,0x10,0x16); c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世纪,c_sun=1为19世纪调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据 */ void Conversion(bit c,uchar year,uchar month,uchar day) { //c=0 为21世纪,c=1 为19世纪输入输出数据均为BCD数据 uchar temp1,temp2,temp3,month_p; uint temp4,table_addr; bit flag2,flag_y; temp1=year/16; //BCD->hex 先把数据转换为十六进制 temp2=year%16; year=temp1*10+temp2; temp1=month/16; temp2=month%16; month=temp1*10+temp2; temp1=day/16; temp2=day%16; day=temp1*10+temp2; //定位数据表地址 if(c==0){ table_addr=(year+0x64-1)*0x3; } else { table_addr=(year-1)*0x3; } //定位数据表地址完成 //取当年春节所在的公历月份 temp1=year_code[table_addr+2]&0x60; temp1=_cror_(temp1,5); //取当年春节所在的公历月份完成 //取当年春节所在的公历日 temp2=year_code[table_addr+2]&0x1f; //取当年春节所在的公历日完成 // 计算当年春年离当年元旦的天数,春节只会在公历1月或2月 if(temp1==0x1){ temp3=temp2-1; } else{ temp3=temp2+0x1f-1; } // 计算当年春年离当年元旦的天数完成 //计算公历日离当年元旦的天数,为了减少运算,用了两个表 //day_code1[9],day_code2[3] //如果公历月在九月或前,天数会少于0xff,用表day_code1[9], //在九月后,天数大于0xff,用表day_code2[3] //如输入公历日为8月10日,则公历日离元旦天数为day_code1[8-1]+10-1 //如输入公历日为11月10日,则公历日离元旦天数为day_code2[11-10]+10-1 if (month<10){ temp4=day_code1[month-1]+day-1; } else{ temp4=day_code2[month-10]+day-1; } if ((month>0x2)&&(year%0x4==0)){ //如果公历月大于2月并且该年的2月为闰月,天数加1 temp4+=1; } //计算公历日离当年元旦的天数完成 //判断公历日在春节前还是春节后 if (temp4>=temp3){ //公历日在春节后或就是春节当日使用下面代码进行运算 temp4-=temp3; month=0x1; month_p=0x1; //month_p为月份指向,公历日在春节前或就是春节当日month_p指向首月 flag2=get_moon_day(month_p,table_addr); //检查该农历月为大小还是小月,大月返回1,小月返回0 flag_y=0; if(flag2==0)temp1=0x1d; //小月29天 else temp1=0x1e; //大小30天 temp2=year_code[table_addr]&0xf0; temp2=_cror_(temp2,4); //从数据表中取该年的闰月月份,如为0则该年无闰月 while(temp4>=temp1){ temp4-=temp1; month_p+=1; if(month==temp2){ flag_y=~flag_y; if(flag_y==0)month+=1; } else month+=1; flag2=get_moon_day(month_p,table_addr); if(flag2==0)temp1=0x1d; else temp1=0x1e; } day=temp4+1; } else{ //公历日在春节前使用下面代码进行运算 temp3-=temp4; if (year==0x0){year=0x63;c=1;} else year-=1; table_addr-=0x3; month=0xc; temp2=year_code[table_addr]&0xf0; temp2=_cror_(temp2,4); if (temp2==0)month_p=0xc; else month_p=0xd; // /* month_p为月份指向,如果当年有闰月,一年有十三个月,月指向13, 无闰月指向12 */ flag_y=0; flag2=get_moon_day(month_p,table_addr); if(flag2==0)temp1=0x1d; else temp1=0x1e; while(temp3>temp1){ temp3-=temp1; month_p-=1; if(flag_y==0)month-=1; if(month==temp2)flag_y=~flag_y; flag2=get_moon_day(month_p,table_addr); if(flag2==0)temp1=0x1d; else temp1=0x1e; } day=temp1-temp3+1; } c_moon=c; //HEX->BCD ,运算结束后,把数据转换为BCD数据 temp1=year/10; temp1=_crol_(temp1,4); temp2=year%10; year_moon=temp1|temp2; temp1=month/10; temp1=_crol_(temp1,4); temp2=month%10; month_moon=temp1|temp2; temp1=day/10; temp1=_crol_(temp1,4); temp2=day%10; day_moon=temp1|temp2; } /* 函数功能:输入BCD阳历数据,输出BCD星期数据(只允许1901-2099年) 调用函数示例:Conver_week(c_sun,year_sun,month_sun,day_sun) 如:计算2004年10月16日Conversion(0,0x4,0x10,0x16); c_sun,year_sun,month_sun,day_sun均为BCD数据,c_su n为世纪标志位,c_sun=0为21世纪,c_sun=1为19世纪调用函数后,原有数据不变,读week得出阴历BCD数据 */ code uchar table_week[12]={0,3,3,6,1,4,6,2,5,0,3,5}; //月修正数据表 /* 算法:日期+年份+所过闰年数+月较正数之和除7 的余数就是星期但如果是在闰年又不到3 月份上述之和要减一天再除7 星期数为0 */ void Conver_week(bit c,uchar year,uchar month,uchar day) {//c=0 为21世纪,c=1 为19世纪输入输出数据均为BCD数据 uchar temp1,temp2; temp1=year/16; //BCD->hex 先把数据转换为十六进制 temp2=year%16; year=temp1*10+temp2; temp1=month/16; temp2=month%16; month=temp1*10+temp2; temp1=day/16; temp2=day%16; day=temp1*10+temp2; if (c==0){year+=0x64;} //如果为21世纪,年份数加100 temp1=year/0x4; //所过闰年数只算1900年之后的 temp2=year+temp1; temp2=temp2%0x7; //为节省资源,先进行一次取余,避免数大于0xff,避免使用整型数据 temp2=temp2+day+table_week[month-1]; if (year%0x4==0&&month<3)temp2-=1; week=temp2%0x7; } //test uchar c_sun,year_sun,month_sun,day_sun; void main(){ c_sun=1; year_sun=0x2; month_sun=0x11; day_sun=0x3; Conver_week(c_sun,year_sun,month_sun,day_sun); Conversion(c_sun,year_sun,month_sun,day_sun); while(1); }

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