用DS1302在LCD1602上显示实时时钟\nLCD1602接线：SCL--D12,SDA——D11\nDS102接线：RST-D2,DAT-D3,CLK-D416,2mylcd12110x3fSerial9600global_variate:LsTimeString 234DATETIME11000用逻辑运算符组合条件判断时、分、秒是否为个位数，如果是0-9的个位数，修改输出格式，否则直接输出。:LsTime ANDGTEHour0LTEHour9:LsTime00:Hour::LsTimeString0Hour:ANDGTEMinute0LTEMinute9:LsTime0:LsTime:00:Minute::LsTimeString0:LsTime:0Minute:ANDGTESecond0LTESecond9:LsTime0:LsTime:0:Second:LsTimeString0:LsTime:SecondSerialprintlnHelloHelloYearMixly/MixlyMonthMixly/MixlyDaySerialprintln:LsTimemylcdHelloHelloYearMixly/MixlyMonthMixly/MixlyDay:LsTime