#include??

#include

unsigned?char?code?table[]?=?{0xc00xf90xa40xb00x990x920x820xf80x800x900x880x830xc60xa10x860x8e};//共陽數(shù)碼管顯示0~F
void?delay（）???????????????????//延時子程序
{
?unsigned?char?n?m;
?for?（n?=?100;?n?>?0;?n--）
??for?（m?=?300;?m?>?0;?m--）;????
}
void?display（unsigned?char?S）??????//顯示子程序
{
?P0?=?table[S];	//數(shù)碼管是P0口驅(qū)動的
?delay（）;????????????????????
?P3?=?0x7f;?//數(shù)碼管選通開關(guān)（P3.7選通?也就是數(shù)碼管的第八位?（從左到右順序））
}
unsigned?char?Keycan（void）?//按鍵掃描程序?P1.0--P1.3為行線?P1.4--P1.7為列線
{
??unsigned?char?rcode?ccode;
??P1?=?0xF0;??????//?發(fā)全0行掃描碼，列線輸入
??if（（P1&0xF0）?!=?0xF0）?//?若有鍵按下
??{
????delay（）;//?延時去抖動?
????if（（P1&0xF0）?!=?0xF0）
????{??rcode?=?0xFE;?????????//?逐行掃描初值
????while（（rcode&0x10）?!=?0）
????{
???????P1?=?rcode;?????????//?輸出行掃描碼

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

?????文件???????4958??2008-07-08?11:23??999秒倒計時程序\daojishi

?????文件???????7807??2008-07-08?11:23??999秒倒計時程序\daojishi.M51

?????文件????????966??2009-07-22?22:32??999秒倒計時程序\daojishi.Opt

?????文件???????2118??2009-07-22?22:32??999秒倒計時程序\daojishi.Uv2

?????文件???????1706??2008-07-08?11:23??999秒倒計時程序\daojishi.hex

?????文件?????????43??2008-07-08?11:23??999秒倒計時程序\daojishi.lnp

?????文件????????232??2009-07-22?22:32??999秒倒計時程序\daojishi.plg

?????文件????????981??2008-07-08?11:23??999秒倒計時程序\daojishi_Opt.Bak

?????文件???????2147??2008-07-08?11:12??999秒倒計時程序\daojishi_Uv2.Bak

?????文件???????5812??2008-07-08?11:23??999秒倒計時程序\djs.LST

?????文件???????5718??2008-07-08?11:23??999秒倒計時程序\djs.OBJ

?????文件???????2040??2008-07-09?15:23??999秒倒計時程序\djs.c

?????文件?????123392??2008-07-10?15:51??999秒倒計時程序\實驗說明文檔.doc

?????文件???????4310??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshuma.LST

?????文件????????662??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshuma.OBJ

?????文件???????1159??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshuma.asm

?????文件????????677??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshumaguan

?????文件???????3021??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshumaguan.M51

?????文件???????1229??2008-07-08?11:44??鍵盤控制數(shù)碼管\keyshumaguan.Opt

?????文件???????2179??2008-07-08?11:44??鍵盤控制數(shù)碼管\keyshumaguan.Uv2

?????文件????????282??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshumaguan.hex

?????文件?????????37??2007-09-18?17:24??鍵盤控制數(shù)碼管\keyshumaguan.lnp

?????文件????????211??2008-07-08?11:44??鍵盤控制數(shù)碼管\keyshumaguan.plg

?????文件???????1225??2007-10-10?00:22??鍵盤控制數(shù)碼管\keyshumaguan_Opt.Bak

?????文件???????2150??2007-07-28?00:30??鍵盤控制數(shù)碼管\keyshumaguan_Uv2.Bak

?????文件?????113664??2008-11-19?12:39??鍵盤控制數(shù)碼管\實驗說明文檔.doc

?????文件???????5533??2008-05-21?12:41??4x4矩陣鍵盤實驗（計算法）\4x4

?????文件???????3878??2008-05-21?12:41??4x4矩陣鍵盤實驗（計算法）\4x4.LST

?????文件???????5980??2008-05-21?12:41??4x4矩陣鍵盤實驗（計算法）\4x4.M51

?????文件???????5942??2008-05-21?12:41??4x4矩陣鍵盤實驗（計算法）\4x4.OBJ

............此處省略46個文件信息