单片机万年历实训仿真图：1D714D613D512D411D310D29D18D07E6RW5RS4VSS1VDD2VEE3LCD1LM016LC410uFR210k+4.5XTAL218XTAL119ALE30EA31PSEN29RST9P0.0/AD039P0.1/AD138P0.2/AD237P0.3/AD336P0.4/AD435P0.5/AD534P0.6/AD633P0.7/AD732P2.7/A1528P2.0/A821P2.1/A922P2.2/A1023P2.3/A1124P2.4/A1225P2.5/A1326P2.6/A1427P1.01P1.12P1.23P1.34P1.45P1.56P1.67P1.78P3.0/RXD10P3.1/TXD11P3.2/INT012P3.3/INT113P3.4/T014P3.7/RD17P3.6/WR16P3.5/T115U280C51X2CRYSTALC530pFC630pFRV110kmean键key_mean确定键key_ok增加键key_set单片机复位键Q12N3390meanokset2原理图：程序：/******************************************使用LCD1602与单片机实现的时钟与日期显示年、月、日、时、分、秒（24小时制）时间可调，年份2000——99992012年10月9日*******************************************/#include/******全局变量的定义与设置******/sbitkey_mean=P1^0;//按键的定义sbitkey_ok=P1^1;sbitkey_set=P1^2;sbitRS=P1^5;//LCD控制端口3sbitRW=P1^6;sbitE=P1^7;sfrPORT=0xa0;charflag_sec=0;//值为20代表1scharflag_en_ok=0;charflag_en_key=0;//值为1表示键盘有效，否则无效charflag_ok=0;//key_up与key_down的功能选择charflag_mean=0;charflag_set=0;//key_up与key_down的功能标识charflag_year_leap=0;//短语//codecharstring_time[]="Settingtime?\0";codecharstring_year[]="Settingyear?\0";codecharstring_month[]="Settingmonth?\0";codecharstring_mday[]="Settingday?\0";codecharstring_week[]="Settingweek?\0";codecharstring_hour[]="Settinghour?\0";codecharstring_minute[]="Settingminute?\0";codecharstring_second[]="Settingsecond?\0";//年月日时分秒的定义structDATA_TIME{shortyear;//待选charmonth;charmday;charweek;charhour;charminute;charsecond;}time;structtime_char//time的字符型{charch_year[4];charch_month[2];charch_mday[2];charch_week[1];charch_hour[2];charch_minute[2];charch_second[2];}time_ch;/***************子函数****************/4//LCD的延时程序voidLCD_delay(void){chari,j;for(i=100;i>=0;i--)for(j=0;j<20;j++);}//向LCD写指令函数voidwcmd(charcmd){RS=0;RW=0;E=1;LCD_delay();PORT=cmd;LCD_delay();E=0;}//向LCD写数据函数voidwdata(charDATA){RS=1;RW=0;E=1;LCD_delay();PORT=DATA;LCD_delay();E=0;}//写字符串voidwstring(char*pt,chari)//i为字符的个数，不带\0{charj;for(j=0;j
