#include
#define?bool?bit;
#define?ture?1
#define	false?0

sbit?D1=P1^0;

void?delay02s（void）
{
unsigned?char?ijk;
for（i=20;i>0;i--）
for（j=20;j>0;j--）
for（k=248;k>0;k--）;
}

void?main（void）
{
????while（1）
????{???
????????D1=0?;???????????????
????????delay02s（）;
????????D1=1;???????????????
????????delay02s（）;?
????

?????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1657??2007-10-18?09:11??AT89S51單片機試驗及實踐教程\說明.txt

?????文件??????86528??2007-08-13?01:07??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\19.“叮咚”門鈴.doc

?????文件??????31896??2007-10-16?21:37??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\doorbell-1.DSN

?????文件????????717??2007-10-16?21:37??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\doorbell-1.PWI

?????文件??????39329??2007-10-16?21:32??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\doorbell.DSN

?????文件??????????0??2007-08-04?01:30??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\doorbell.DSN有問題.txt

?????文件????????653??2007-10-16?21:32??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\doorbell.PWI

?????文件??????31896??2007-10-16?21:35??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Last?Loaded?doorbell-1.DBK

?????文件??????38762??2007-08-04?01:27??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Last?Loaded?doorbell.DBK

?????文件????????900??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell

?????文件???????1046??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.asm

?????文件????????390??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.hex

?????文件?????????33??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.lnp

?????文件???????5788??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.LST

?????文件???????4139??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.M51

?????文件????????847??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.OBJ

?????文件????????966??2007-07-31?10:54??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.Opt

?????文件????????177??2007-07-31?10:52??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.plg

?????文件???????1662??2007-07-31?10:54??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell.Uv2

?????文件??????????0??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-H\doorbell_Uv2.Bak

?????文件???????1684??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell

?????文件???????1157??2007-07-31?10:50??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.c

?????文件????????428??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.hex

?????文件?????????33??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.lnp

?????文件???????3045??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.LST

?????文件???????8009??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.M51

?????文件???????2130??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.OBJ

?????文件????????964??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.Opt

?????文件????????131??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.plg

?????文件???????1658??2007-07-31?10:51??AT89S51單片機試驗及實踐教程\19.?“叮咚”門鈴\Keil-C\doorbell.Uv2

............此處省略1145個文件信息