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#include "reg52.h" typedef unsigned char u8; typedef unsigned int u16; sbit beep = P2^5; void delay(u16 i) { while(i--); } void main() { while(1){ bee 阅读全文
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11.0592M Hz，工作方式1: 50ms 4C00 5ms EE00 1ms FC66 0.5ms FE33 0.2ms FF47 0.1ms FFA3 0.05ms FFD1 0.01ms FFF6 12MHZ 50ms 0x3cb0 (65536-50000)/256:0X3C (6553 阅读全文
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#include<reg51.h> #define uchar unsigned char; #define uint unsigned int; uchar position; uchar tt; uchar second; uchar minute; uchar hour; uchar code 阅读全文
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#include<reg51.h> void main( ) { unsigned char x=1,y=2; unsigned char seg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; while(1) { P0=seg[x]; 阅读全文
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#include<reg51.h> #include<intrins.h> void delay(unsigned int i); void main() { unsigned int x,y; while(1) { P1=0x7F; for (x=0;x<8;x++) { delay(60000) 阅读全文
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#include<reg51.h> unsigned char count=0; unsigned char miao=0; void timer_1() interrupt 3 { TH1=(65536-50000)/256; TL1=(65536-50000)%256; count++; if( 阅读全文
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#include<reg51.h> #include<intrins.h> /* K1按：D2亮，D9亮，D8亮，D7亮，D6亮，D5亮，D4亮，D3亮,D2亮，D9亮，循环亮 K2按：所有都不亮 K3按：暂停，只有一亮 K4按：D9亮，D2亮，D2亮，D4亮，D5亮，D6亮，D7亮，D8亮,D9亮 阅读全文
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#include <reg51.h> #define uint unsigned int #define uchar unsigned char #define CF P0 uint sec=0; sbit K1=P3^2; sbit K2=P3^1; sbit K3=P3^0; sbit LED1 阅读全文
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Sub shezhi()rem 设置星期日列、晚自习行格式设置Dim sht As WorksheetFor Each sht In WorksheetsIf sht.Name <> "Sheet1" Then sht.Selectsht.Activate Columns("I:I").Select 阅读全文
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Dim x Dim sht As WorksheetFor Each sht In WorksheetsIf sht.Name <> "Sheet1" Then sht.Selectsht.Activate For Each x In ActiveSheet.DrawingObjects If x. 阅读全文