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Basic-ex3 へ行く。
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[[Basic-ex1]]

 objectPage http://www.yama-lab.org/fwb4pi/index.php?Basic-ex3 or http://www.yama-lab.org/fwb4pi/index.php?Basic-ex3
 device yamaRasPiDp9_1 or yamaRasPiDp9_2 start after no write for 10 min.
 command: set readInterval=60000
 command: set execInterval=0
 command: program ex1
 program: def abs(x)= if x>=0 then x else -x
 program: ex("service","clear sendBuffer")
 program: 's=0
 program: 'for i=0 to 10
 program: '  s=s+i
 program: '  ex("service","putSendBuffer "+s)
 program: 'next i
 program: 't1=abs(1-2)
 program: 'ex("service","putSendBuffer t1="+t1)
 program: d=ex("service","getCurrentDate.")
 program: ex("service","putSendBuffer d="+d)
 program: ld=date2l(d)
 program: ex("service","putSendBuffer ld="+ld)
 program: dl=l2date(ld)
 program: ex("service","putSendBuffer dl="+dl)
 program: rd=date2l("2019/7/01 22:05:00")
 program: ex("service","putSendBuffer rd="+rd)
 program: ddx=abs(rd-ld)
 program: ex("service","putSendBuffer ddx="+ddx)
 program: if abs(rd-ld)<300 then
 program: {
 program:   ex("service","putSendBuffer it is almost "+d)
 program: }
 program: else
 program: {
 program:   ex("service","putSendBuffer it is not "+d)
 program: }
 program: ex("service","sendResults.")
 command: end ex1
 command: run ex1
 result:
 d=2019/7/1/ 22:8:14
 ld=1561986494000
 dl=2019/07/01/ 22:08:14
 d=2019/7/1/ 22:9:14
 ld=1561986554000
 dl=2019/07/01/ 22:09:14
 rd=1561906800000
 ddx=79694000
 it is not 2019/7/1/ 22:8:14
 currentDevice="yamaRasPiDp1_1",Date=2019/7/1/ 22:8:14

 ddx=79754000
 it is not 2019/7/1/ 22:9:14
 currentDevice="yamaRasPiDp1_1",Date=2019/7/1/ 22:9:14