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while

while是計(jì)算機(jī)的一種基本循環(huán)模式。當(dāng)滿足條件時(shí)進(jìn)入循環(huán)，進(jìn)入循環(huán)后，當(dāng)條件不滿足時(shí)，跳出循環(huán)。while語(yǔ)句的一般表達(dá)式為：while（表達(dá)式）{循環(huán)體}。

Feedback Control Theory

Striking developments have taken place since 1980 in feedback control theory. The subject has be- come both more rigorous and more applicable. The rigor is not for its own sake, but rather that even in an engineering discipline rigor can lead to clarity and to methodical solutions to problems. The applicability is a consequence both of new problem formulations and new mathematical solutions to these problems. Moreover, computers and software have changed the way engineering design is done. These developments suggest a fresh presentation of the subject, one that exploits these new developments while emphasizing their connection with classical control.

標(biāo)簽： Feedback Control Theory

上傳時(shí)間： 2020-06-10

上傳用戶：shancjb
Bishop-Pattern-Recognition-and-Machine-Learning

Pattern recognition has its origins in engineering, whereas machine learning grew out of computer science. However, these activities can be viewed as two facets of the same field, and together they have undergone substantial development over the past ten years. In particular, Bayesian methods have grown from a specialist niche to become mainstream, while graphical models have emerged as a general framework for describing and applying probabilistic models. Also, the practical applicability of Bayesian methods has been greatly enhanced through the development of a range of approximate inference algorithms such as variational Bayes and expectation propa- gation. Similarly, new models based on kernels have had significant impact on both algorithms and applications.

標(biāo)簽： Bishop-Pattern-Recognition-and-Ma chine-Learning

上傳時(shí)間： 2020-06-10

上傳用戶：shancjb
Foundations+of+Machine+Learning+2nd

This book is a general introduction to machine learning that can serve as a reference book for researchers and a textbook for students. It covers fundamental modern topics in machine learning while providing the theoretical basis and conceptual tools needed for the discussion and justification of algorithms. It also describes several key aspects of the application of these algorithms.

標(biāo)簽： Foundations Learning Machine 2nd of

上傳時(shí)間： 2020-06-10

上傳用戶：shancjb
Machine learning

Machine learning is about designing algorithms that automatically extract valuable information from data. The emphasis here is on “automatic”, i.e., machine learning is concerned about general-purpose methodologies that can be applied to many datasets, while producing something that is mean- ingful. There are three concepts that are at the core of machine learning: data, a model, and learning.

標(biāo)簽： learning Machine

上傳時(shí)間： 2020-06-10

上傳用戶：shancjb
二叉樹(shù)子系統(tǒng)

#include<stdio.h> #define TREEMAX 100 typedef struct BT { char data; BT *lchild; BT *rchild; }BT; BT *CreateTree(); void Preorder(BT *T); void Postorder(BT *T); void Inorder(BT *T); void Leafnum(BT *T); void Nodenum(BT *T); int TreeDepth(BT *T); int count=0; void main() { BT *T=NULL; char ch1,ch2,a; ch1='y'; while(ch1=='y'||ch1=='y') { printf("\n"); printf("\n\t\t 二叉樹(shù)子系統(tǒng)"); printf("\n\t\t*****************************************"); printf("\n\t\t 1---------建二叉樹(shù) "); printf("\n\t\t 2---------先序遍歷 "); printf("\n\t\t 3---------中序遍歷 "); printf("\n\t\t 4---------后序遍歷 "); printf("\n\t\t 5---------求葉子數(shù) "); printf("\n\t\t 6---------求結(jié)點(diǎn)數(shù) "); printf("\n\t\t 7---------求樹(shù)深度 "); printf("\n\t\t 0---------返回 "); printf("\n\t\t*****************************************"); printf("\n\t\t 請(qǐng)選擇菜單號(hào) （0--7）"); scanf("%c",&ch2); getchar(); printf("\n"); switch(ch2) { case'1': printf("\n\t\t請(qǐng)按先序序列輸入二叉樹(shù)的結(jié)點(diǎn):\n"); printf("\n\t\t說(shuō)明：輸入結(jié)點(diǎn)（‘0’代表后繼結(jié)點(diǎn)為空）后按回車。\n"); printf("\n\t\t請(qǐng)輸入根結(jié)點(diǎn):"); T=CreateTree(); printf("\n\t\t二叉樹(shù)成功建立！\n");break; case'2': printf("\n\t\t該二叉樹(shù)的先序遍歷序列為:"); Preorder(T);break; case'3': printf("\n\t\t該二叉樹(shù)的中序遍歷序列為:"); Inorder(T);break; case'4': printf("\n\t\t該二叉樹(shù)的后序遍歷序列為:"); Postorder(T);break; case'5': count=0;Leafnum(T); printf("\n\t\t該二叉樹(shù)有%d個(gè)葉子。\n",count);break; case'6': count=0;Nodenum(T); printf("\n\t\t該二叉樹(shù)總共有%d個(gè)結(jié)點(diǎn)。\n",count);break; case'7': printf("\n\t\t該樹(shù)的深度為:%d",TreeDepth(T)); break; case'0': ch1='n';break; default: printf("\n\t\t***請(qǐng)注意：輸入有誤！***"); } if(ch2!='0') { printf("\n\n\t\t按【Enter】鍵繼續(xù)，按任意鍵返回主菜單！\n"); a=getchar(); if(a!='\xA') { getchar(); ch1='n'; } } } } BT *CreateTree() { BT *t; char x; scanf("%c",&x); getchar(); if(x=='0') t=NULL; else { t=new BT; t->data=x; printf("\n\t\t請(qǐng)輸入%c結(jié)點(diǎn)的左子結(jié)點(diǎn):",t->data); t->lchild=CreateTree(); printf("\n\t\t請(qǐng)輸入%c結(jié)點(diǎn)的右子結(jié)點(diǎn):",t->data); t->rchild=CreateTree(); } return t; } void Preorder(BT *T) { if(T) { printf("%3c",T->data); Preorder(T->lchild); Preorder(T->rchild); } } void Inorder(BT *T) { if(T) { Inorder(T->lchild); printf("%3c",T->data); Inorder(T->rchild); } } void Postorder(BT *T) { if(T) { Postorder(T->lchild); Postorder(T->rchild); printf("%3c",T->data); } } void Leafnum(BT *T) { if(T) { if(T->lchild==NULL&&T->rchild==NULL) count++; Leafnum(T->lchild); Leafnum(T->rchild); } } void Nodenum(BT *T) { if(T) { count++; Nodenum(T->lchild); Nodenum(T->rchild); } } int TreeDepth(BT *T) { int ldep,rdep; if(T==NULL) return 0; else { ldep=TreeDepth(T->lchild); rdep=TreeDepth(T->rchild); if(ldep>rdep) return ldep+1; else return rdep+1; } }

標(biāo)簽： 二叉樹(shù) 子系統(tǒng)

上傳時(shí)間： 2020-06-11

上傳用戶：ccccy
數(shù)組子系統(tǒng)

#include <stdio.h> #include <stdlib.h> #define SMAX 100 typedef struct SPNode { int i,j,v; }SPNode; struct sparmatrix { int rows,cols,terms; SPNode data [SMAX]; }; sparmatrix CreateSparmatrix() { sparmatrix A; printf("\n\t\t請(qǐng)輸入稀疏矩陣的行數(shù)，列數(shù)和非零元素個(gè)數(shù)（用逗號(hào)隔開(kāi)）:"); scanf("%d,%d,%d",&A.cols,&A.terms); for(int n=0;n<=A.terms-1;n++) { printf("\n\t\t輸入非零元素值（格式：行號(hào)，列號(hào)，值）:"); scanf("%d,%d,%d",&A.data[n].i,&A.data[n].j,&A.data[n].v); } return A; } void ShowSparmatrix(sparmatrix A) { int k; printf("\n\t\t"); for(int x=0;x<=A.rows-1;x++) { for(int y=0;y<=A.cols-1;y++) { k=0; for(int n=0;n<=A.terms-1;n++) { if((A.data[n].i-1==x)&&(A.data[n].j-1==y)) { printf("%8d",A.data[n].v); k=1; } } if(k==0) printf("%8d",k); } printf("\n\t\t"); } } void sumsparmatrix(sparmatrix A) { SPNode *p; p=(SPNode*)malloc(sizeof(SPNode)); p->v=0; int k; k=0; printf("\n\t\t"); for(int x=0;x<=A.rows-1;x++) { for(int y=0;y<=A.cols-1;y++) { for(int n=0;n<=A.terms;n++) { if((A.data[n].i==x)&&(A.data[n].j==y)&&(x==y)) { p->v=p->v+A.data[n].v; k=1; } } } printf("\n\t\t"); } if(k==1) printf("\n\t\t對(duì)角線元素的和：:%d\n",p->v); else printf("\n\t\t對(duì)角線元素的和為：:0"); } int main() { int ch=1,choice; struct sparmatrix A; A.terms=0; while(ch) { printf("\n"); printf("\n\t\t 稀疏矩陣的三元組系統(tǒng) "); printf("\n\t\t*********************************"); printf("\n\t\t 1------------創(chuàng)建 "); printf("\n\t\t 2------------顯示 "); printf("\n\t\t 3------------求對(duì)角線元素和"); printf("\n\t\t 4------------返回 "); printf("\n\t\t*********************************"); printf("\n\t\t請(qǐng)選擇菜單號(hào)（0-3）:"); scanf("%d",&choice); switch(choice) { case 1: A=CreateSparmatrix(); break; case 2: ShowSparmatrix(A); break; case 3: SumSparmatrix(A); break; default: system("cls"); printf("\n\t\t輸入錯(cuò)誤！請(qǐng)重新輸入！\n"); break; } if (choice==1||choice==2||choice==3) { printf("\n\t\t"); system("pause"); system("cls"); } else system("cls"); } }

標(biāo)簽： 數(shù)組子系統(tǒng)

上傳時(shí)間： 2020-06-11

上傳用戶：ccccy
STM32F407VGT6精確脈沖控制步進(jìn)電機(jī)源碼

STM32F407VGT6精確脈沖控制步進(jìn)電機(jī)源碼,采用STM32F407VGT6芯片，拋棄單脈沖輸出方式，直接使用普通PWM輸出方式精確輸出脈沖個(gè)數(shù)，每個(gè)脈沖都可以改變頻率和占空比。PWM+中斷，簡(jiǎn)單粗暴。#include "sys.h"#include "delay.h"#include "pwm1.h"#include "pwm2.h"#include "pwm3.h"//注釋見(jiàn)pwm1.c文件extern int count2;int main(void){ delay_init(168); //初始化延時(shí)函數(shù) TIM2_Init(1,167); TIM3_Init(1,167); TIM5_Init(1,167); // delay_ms(1000); TIM2_OUTPUT(); TIM3_OUTPUT(); TIM5_OUTPUT(); while(1) { //TIM2每次輸出完10個(gè)脈沖后間隔100ms再次輸出 if(count2 >= 10){ delay_ms(100); TIM2_OUTPUT(); } }

標(biāo)簽： stm32f407vgt6 脈沖控制步進(jìn)電機(jī)

上傳時(shí)間： 2021-10-26

上傳用戶：xsr1983
51單片機(jī)基礎(chǔ)應(yīng)用設(shè)計(jì)C語(yǔ)言實(shí)例（400例）合集

100-24c02記憶開(kāi)機(jī)次數(shù)101-24c02存儲(chǔ)上次使用中狀態(tài)102-DS1302 時(shí)鐘原理103-DS1302可調(diào)時(shí)鐘104-DS1302時(shí)鐘串口自動(dòng)更新時(shí)間105-1602液晶顯示DS1302時(shí)鐘106-字庫(kù)ST7920 12864液晶基礎(chǔ)顯示107-按鍵 12864顯示108-PCF8591 1路AD數(shù)碼管顯示109-PCF8591 4路AD數(shù)碼管顯示11-LED循環(huán)右移110-PCF8591 DA輸出模擬111-PCF8591 輸出鋸齒波112-PCF8591 1602液晶顯示113-串口通訊114-串口通訊中斷應(yīng)用115-RS485基本通訊原理116-紅外接收原理117-紅外解碼數(shù)碼管顯示118-紅外解碼1602液晶顯示119-紅外發(fā)射原理12-查表顯示LED燈120-紅外收發(fā)測(cè)試121-雙紅外發(fā)射避障原理測(cè)試122-1個(gè)18B20 溫度傳感器數(shù)碼管顯示123-1個(gè)18b20溫度傳感器1602液晶顯示124-多個(gè)18b20溫度傳感器1602液晶顯示125-超溫報(bào)警測(cè)試126-溫度可調(diào)上下限1602126-溫度可調(diào)上下限1602顯示127-PS2鍵盤(pán)輸入1602液晶顯示128-雙色點(diǎn)陣1種顏色顯示測(cè)試129-雙色點(diǎn)陣2種顏色顯示測(cè)試13-雙燈左移右移閃爍130-雙色點(diǎn)陣顯示特定圖形131-雙色點(diǎn)陣交替圖形顯示132-雙色點(diǎn)陣雙色交替動(dòng)態(tài)顯示133-熱敏電阻測(cè)試數(shù)碼管顯示134-光敏電阻測(cè)試數(shù)碼管顯示135-自動(dòng)調(diào)光測(cè)試136-串轉(zhuǎn)并數(shù)字芯片測(cè)試137-非門(mén)數(shù)字芯片測(cè)試138-電子琴139-實(shí)用99分鐘倒計(jì)時(shí)器14-花樣燈140-外部頻率測(cè)試141-定時(shí)做普通時(shí)鐘可調(diào)142-1602液晶顯示的密碼鎖143-實(shí)用密碼鎖144-1602液晶顯示的計(jì)算器145-秒表146-串口測(cè)溫電腦顯示147-交通燈測(cè)試148-點(diǎn)陣模擬電梯上行下行149-點(diǎn)陣流動(dòng)廣告模擬15-PWM調(diào)光150-綜合測(cè)試程序151-12位AD_DS1621與12864液晶152-閃爍燈一153-閃爍燈二154-流水燈A155-51單片機(jī)12864大液晶屏proteus仿真156-流水燈B157-數(shù)碼管顯示158-12864LCD顯示計(jì)算器鍵盤(pán)按鍵實(shí)驗(yàn)159-數(shù)碼管顯示（鎖存器）16-共陽(yáng)數(shù)碼管靜態(tài)顯示160-數(shù)碼管動(dòng)態(tài)顯示161-數(shù)碼管滾動(dòng)顯示162-數(shù)碼管字符顯示163-獨(dú)立按鍵164-矩陣鍵盤(pán)165-矩陣鍵盤(pán)(LCD)166-用DS1302與12864LCD設(shè)計(jì)的可調(diào)式中文電子日歷167-定時(shí)器的使用(方式1)168-12864LCD圖形滾動(dòng)演示169-用PG12864LCD設(shè)計(jì)的指針式電子鐘17-1個(gè)共陽(yáng)數(shù)碼管顯示變化數(shù)字170-定時(shí)器的使用(方式2)171-外部中斷的使用172-定時(shí)器和外部中斷173-開(kāi)關(guān)控制12864LCD串行模式顯示174-點(diǎn)陣顯示175-液晶1602顯示176-12864帶字庫(kù)測(cè)試程序177-串行12864顯示178-遙控鍵值解碼-12864LCD顯示179-液晶12864并行18-單個(gè)數(shù)碼管模擬水流180-液晶12864并行2181-串口發(fā)送試驗(yàn)182-串口接收試驗(yàn)183-串口接收（1602）184-蜂鳴器發(fā)聲185-直流電機(jī)調(diào)速186-蜂鳴器間斷發(fā)聲187-lcd-12864應(yīng)用188-繼電器控制189-直流電機(jī)調(diào)速19-按鍵控制單個(gè)數(shù)碼管顯示190-步進(jìn)電機(jī)191-存儲(chǔ)AT24C02192-PCF8591T AD實(shí)驗(yàn)193-PCF8591T芯片DA實(shí)驗(yàn)194-溫度采集DS18B20195-EEPROM_24C02196-12864LCD顯示24C08保存的開(kāi)機(jī)畫(huà)面197-紅外解碼198-12864LCD顯示EPROM2764保存的開(kāi)機(jī)畫(huà)面199-時(shí)鐘DS1302(LCD)2-IO輸出-點(diǎn)亮1個(gè)LED燈方法220-單個(gè)數(shù)碼管指示邏輯電平200-宏晶看門(mén)狗201-SD卡202-秒表203-普通定時(shí)器時(shí)鐘204-彩屏控制205-彩屏圖片顯示206-12864+DS1302時(shí)鐘+18B20溫度計(jì)207-12864測(cè)試程序208-12864串行驅(qū)動(dòng)演示209-12864生產(chǎn)廠程序21-8位數(shù)碼管顯示其中之一210-12864中文顯示測(cè)試211-LCD12864212-12864M液晶顯示(有字庫(kù))程序（匯編）213-超聲波測(cè)距LCD12864顯示214-紅外遙控鍵值解碼12864液晶顯示（匯編語(yǔ)言）215-用DS1302與12864LCD設(shè)計(jì)的可調(diào)式中文電子日歷216-中文12864217-中文12864LCD顯示紅外遙控解碼實(shí)驗(yàn)218-IO端口輸出219-IO端口輸入22-8位數(shù)碼管靜態(tài)顯示其中之二220-流水燈221-數(shù)碼管顯示222-數(shù)碼管動(dòng)態(tài)掃描演示223-獨(dú)立按鍵224-獨(dú)立按鍵去抖動(dòng)225-定時(shí)器0226-定時(shí)器1227-定時(shí)器2228-外部中斷0電平觸發(fā)229-外部中斷0邊沿觸發(fā)23-8位數(shù)碼管動(dòng)態(tài)掃描顯示230-外部中斷1231-矩陣鍵盤(pán)232-液晶LCM1602233-LCD1602動(dòng)態(tài)顯示234-EEPROM24c02235-開(kāi)機(jī)次數(shù)記憶236-紅外解碼LCD1602液晶顯示237-紅外解碼數(shù)碼管顯示238-喇叭239-液晶背光控制24-8位數(shù)碼管動(dòng)態(tài)掃描原理演示240-與電腦串口通信241-步進(jìn)電機(jī)242-字庫(kù)LCD12864液晶測(cè)試243-液晶數(shù)碼綜合顯示244-99秒計(jì)時(shí)245-99倒計(jì)時(shí)246-搶答器247-PWM調(diào)光248-LED點(diǎn)陣249-直流電機(jī)調(diào)速25-數(shù)碼管顯示動(dòng)態(tài)數(shù)據(jù)250-按鍵計(jì)數(shù)器251-秒表252-數(shù)碼管移動(dòng)253-花樣燈254-紅綠燈255-音樂(lè)播放256-紅外收發(fā)演示257-普通定時(shí)器時(shí)鐘258-繼電器控制259-ps2鍵盤(pán)LCD1602液晶顯示26-9累加260-RTC實(shí)時(shí)時(shí)鐘DS1302液晶顯示261-單線溫度傳感器18b20262-串口測(cè)溫263-帶停機(jī) 步進(jìn)電機(jī)正反轉(zhuǎn)264-步進(jìn)電機(jī)正反轉(zhuǎn)265-AD_DA_PCF8591266-液晶AD_DA_PCF8591267-秒手動(dòng)記數(shù)268-功能感受269-流水登27-99累加270-點(diǎn)亮一個(gè)二極管271-用單片機(jī)控制一個(gè)燈閃爍272-將P1口狀態(tài)送入P0、P2、P3273-P3口流水燈274-通過(guò)對(duì)P3口地址的操作流水點(diǎn)亮8位LED275-用不同數(shù)據(jù)類型控制燈閃爍時(shí)間276-用P0口、P1 口分別顯示加法和減法運(yùn)算結(jié)果277-用P0、P1口顯示乘法運(yùn)算結(jié)果278-用P1、P0口顯示除法運(yùn)算結(jié)果279-用自增運(yùn)算控制P0口8位LED流水花樣28-999累加280-用P0口顯示邏輯與運(yùn)算結(jié)果281-用P0口顯示條件運(yùn)算結(jié)果282-用P0口顯示按位異或運(yùn)算結(jié)果283-用P0顯示左移運(yùn)算結(jié)果284-萬(wàn)能邏輯電路實(shí)驗(yàn)285-用右移運(yùn)算流水點(diǎn)亮P1口8位LED286-用if語(yǔ)句控制P0口8位LED的流水方向287-用swtich語(yǔ)句的控制P0口8位LED的點(diǎn)亮狀態(tài)288-用for語(yǔ)句控制蜂鳴器鳴笛次數(shù)289-包含單片機(jī)寄存器的頭文件29-9999累加290-用do-while語(yǔ)句控制P0口8位LED流水點(diǎn)亮291-用字符型數(shù)組控制P0口8位LED流水點(diǎn)亮292-用P0口顯示字符串常量293-用P0 口顯示指針運(yùn)算結(jié)果294-用指針數(shù)組控制P0口8位LED流水點(diǎn)亮295-用數(shù)組的指針控制P0 口8 位LED流水點(diǎn)亮296-用P0 、P1口顯示整型函數(shù)返回值297-用有參函數(shù)控制P0口8位LED流水速度298-用數(shù)組作函數(shù)參數(shù)控制流水花樣299-用數(shù)組作函數(shù)參數(shù)控制流水花樣3-IO輸出-點(diǎn)亮多個(gè)LED燈方法130-9累減300-用函數(shù)型指針控制P1口燈花樣31-99累減32-999累減33-9999累減34-顯示小數(shù)點(diǎn)35-數(shù)碼管消隱36-數(shù)碼管遞加遞減帶消隱37-數(shù)碼管左移38-數(shù)碼管右移38-數(shù)碼管右移139-數(shù)碼管右移24-IO輸出-點(diǎn)亮多個(gè)LED燈方法240-數(shù)碼管循環(huán)左移41-數(shù)碼管循環(huán)右移41-數(shù)碼管循環(huán)右移142-數(shù)碼管循環(huán)右移243-數(shù)碼管閃爍44-數(shù)碼管局部閃爍45-定時(shí)器046-定時(shí)器147-定時(shí)器248-產(chǎn)生1mS方波49-產(chǎn)生200mS方波5-閃爍1個(gè)LED50-產(chǎn)生多路不同頻率方波51-1個(gè)獨(dú)立按鍵控制LED52-1個(gè)獨(dú)立按鍵控制LED狀態(tài)轉(zhuǎn)換53-2按鍵加減操作53-2按鍵加減操作數(shù)碼管顯示54-多位數(shù)按鍵加減（閃爍）54-多位數(shù)按鍵加減（閃爍）數(shù)碼管顯示55-多位數(shù)按鍵加減（不閃爍）55-多位數(shù)按鍵加減（不閃爍）數(shù)碼管顯示56-定時(shí)器掃描數(shù)碼管（不閃爍）57-按鍵長(zhǎng)按短按效果58-搶答器59-獨(dú)立按鍵依次輸入數(shù)據(jù)6-不同頻率閃爍1個(gè)LED燈60-按鍵從右至左輸入61-8位端口檢測(cè)8獨(dú)立按鍵62-矩陣鍵盤(pán)行列掃描63-矩陣鍵盤(pán)反轉(zhuǎn)掃描64-矩陣鍵盤(pán)中斷掃描65-矩陣鍵盤(pán)密碼鎖66-矩陣鍵盤(pán)簡(jiǎn)易計(jì)算器67-外部中斷0電平觸發(fā)68-外部中斷1電平觸發(fā)69-外部中斷0下降沿觸發(fā)7-不同頻率閃爍多個(gè)LED燈70-外部中斷1下降沿觸發(fā)71-T0外部計(jì)數(shù)輸入72-T1外部計(jì)數(shù)輸入73-看門(mén)狗溢出測(cè)試74-按鍵喂狗75-喇叭發(fā)聲原理76-警車聲音77-救護(hù)車聲音78-喇叭滴答聲79-報(bào)警發(fā)聲8-8位LED左移80-消防車警報(bào)81-音樂(lè)播放82-步進(jìn)電機(jī)轉(zhuǎn)動(dòng)原理83-步進(jìn)電機(jī)正反轉(zhuǎn)84-步進(jìn)電機(jī)按鍵控制85-步進(jìn)電機(jī)轉(zhuǎn)

標(biāo)簽： 51單片機(jī) C語(yǔ)言

上傳時(shí)間： 2021-11-08

上傳用戶：
計(jì)算機(jī)科學(xué)的基礎(chǔ)

第 1 章計(jì)算機(jī)科學(xué)：將抽象機(jī)械化........... 11.1 本書(shū)主要內(nèi)容 ........................................... 31.1.1 數(shù)據(jù)模型 ....................................... 31.1.2 數(shù)據(jù)結(jié)構(gòu) ....................................... 41.1.3 算法 ............................................... 41.1.4 基本思路 ....................................... 41.2 本章主要內(nèi)容 ........................................... 41.3 數(shù)據(jù)模型 ................................................... 51.3.1 編程語(yǔ)言數(shù)據(jù)模型........................ 51.3.2 系統(tǒng)軟件的數(shù)據(jù)模型.................... 61.3.3 電路的數(shù)據(jù)模型 ........................... 71.3.4 習(xí)題 ............................................. 101.4 C語(yǔ)言數(shù)據(jù)模型....................................... 101.4.1 C語(yǔ)言類型系統(tǒng)........................... 111.4.2 函數(shù) ............................................. 141.4.3 C語(yǔ)言數(shù)據(jù)模型中的操作........... 141.4.4 數(shù)據(jù)對(duì)象的創(chuàng)建和銷毀.............. 141.4.5 數(shù)據(jù)的訪問(wèn)和修改...................... 151.4.6 數(shù)據(jù)的組合 ................................. 151.4.7 習(xí)題 ............................................. 161.5 算法和程序設(shè)計(jì) ..................................... 161.5.1 軟件的創(chuàng)建 ................................. 161.5.2 編程風(fēng)格 ..................................... 171.6 本書(shū)中用到的一些C語(yǔ)言約定 ............... 171.7 小結(jié) ......................................................... 191.8 參考文獻(xiàn) ................................................. 19第 2 章迭代、歸納和遞歸........................... 202.1 本章主要內(nèi)容 ......................................... 212.2 迭代 ......................................................... 222.2.1 排序 ............................................. 222.2.2 選擇排序：一種迭代排序算法 ............................................. 232.2.3 習(xí)題 ............................................. 272.3 歸納證明 ................................................. 272.3.1 歸納證明為何有效...................... 292.3.2 檢錯(cuò)碼 ......................................... 302.3.3 習(xí)題............................................. 332.4 完全歸納 ................................................. 352.4.1 使用多個(gè)依據(jù)情況進(jìn)行歸納...... 352.4.2 驗(yàn)證完全歸納 ............................. 362.4.3 算術(shù)表達(dá)式的規(guī)范形式 ............. 362.4.4 習(xí)題............................................. 402.5 證明程序的屬性 ..................................... 412.5.1 循環(huán)不變式 ................................. 412.5.2 while循環(huán)的循環(huán)不變式 .......... 452.5.3 習(xí)題............................................. 462.6 遞歸定義 ................................................. 472.6.1 表達(dá)式 ......................................... 492.6.2 平衡圓括號(hào) ................................. 502.6.3 習(xí)題............................................. 542.7 遞歸函數(shù) ................................................. 552.8 歸并排序：遞歸的排序算法 ................. 592.8.1 合并............................................. 592.8.2 分割表 ......................................... 622.8.3 排序算法 ..................................... 632.8.4 完整的程序 ................................. 652.8.5 習(xí)題............................................. 662.9 證明遞歸程序的屬性 ............................. 672.10 小結(jié)....................................................... 692.11 參考文獻(xiàn) ............................................... 69第 3 章程序的運(yùn)行時(shí)間............................... 70。。。

標(biāo)簽： 計(jì)算機(jī)科學(xué)

上傳時(shí)間： 2021-11-28

上傳用戶：slq1234567890
矩陣式鍵盤(pán)

include<reg52.h> #define uint unsigned int #define uchar unsigned char uint temp,aa,wang,qian,bai,shi,ge; sbit dula=P2^6; sbit wela=P2^7; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; void display( uint wang,uint qian,uint bai,uint shi,uint ge); void delay(uint z); void init(); void main() { init();//初始化子程序 while(1) { if(aa==20) { aa=0; temp++; if(temp==99999) { temp=0; } wang=temp/10000; qian=(temp-wang*10000)/1000; bai=(temp-wang*10000-qian*1000)/100; shi=(temp-wang*10000-qian*1000-bai*100)/10; ge=temp%10; } display(wang,qian, bai,shi,ge); } } void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void display(uint wang,uint qian,uint bai,uint shi,uint ge) { dula=1; P0=table[wang]; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(1); dula=1; P0=table[qian]; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(1); dula=1; P0=table[bai]; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(1); dula=1; P0=table[shi]; dula=0; P0=0xff; wela=1; P0=0xf7; wela=0; delay(1); dula=1; P0=table[ge]; dula=0; P0=0xff; wela=1; P0=0xef; wela=0; delay(1); } void init() { wela=0; dula=0; temp=0; TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1; } void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; aa++; } include<reg52.h> #define uint unsigned int #define uchar unsigned char uint temp,aa,wang,qian,bai,shi,ge; sbit dula=P2^6; sbit wela=P2^7; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; void display( uint wang,uint qian,uint bai,uint shi,uint ge); void delay(uint z); void init(); void main() { init();//初始化子程序 while(1) { if(aa==20) { aa=0; temp++; if(temp==99999) { temp=0; } wang=temp/10000; qian=(temp-wang*10000)/1000; bai=(temp-wang*10000-qian*1000)/100; shi=(temp-wang*10000-qian*1000-bai*100)/10; ge=temp%10; } display(wang,qian, bai,shi,ge); } } void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void display(uint wang,uint qian,uint bai,uint shi,uint ge) { dula=1; P0=table[wang]; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(1); dula=1; P0=table[qian]; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(1); dula=1; P0=table[bai]; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(1); dula=1; P0=table[shi]; dula=0; P0=0xff; wela=1; P0=0xf7; wela=0; delay(1); dula=1; P0=table[ge]; dula=0; P0=0xff; wela=1; P0=0xef; wela=0; delay(1); } void init() { wela=0; dula=0; temp=0; TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1; } void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; aa++; } include<reg52.h> #define uint unsigned int #define uchar unsigned char uint temp,aa,wang,qian,bai,shi,ge; sbit dula=P2^6; sbit wela=P2^7; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; void display( uint wang,uint qian,uint bai,uint shi,uint ge); void delay(uint z); void init(); void main() { init();//初始化子程序 while(1) { if(aa==20) { aa=0; temp++; if(temp==99999) { temp=0; } wang=temp/10000; qian=(temp-wang*10000)/1000; bai=(temp-wang*10000-qian*1000)/100; shi=(temp-wang*10000-qian*1000-bai*100)/10; ge=temp%10; } display(wang,qian, bai,shi,ge); } } void delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void display(uint wang,uint qian,uint bai,uint shi,uint ge) { dula=1; P0=table[wang]; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(1); dula=1; P0=table[qian]; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(1); dula=1; P0=table[bai]; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(1); dula=1; P0=table[shi]; dula=0; P0=0xff; wela=1; P0=0xf7; wela=0; delay(1); dula=1; P0=table[ge]; dula=0; P0=0xff; wela=1; P0=0xef; wela=0; delay(1); } void init() { wela=0; dula=0; temp=0; TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; EA=1; ET0=1; TR0=1; } void timer0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; aa++; }

標(biāo)簽： 矩陣式鍵盤(pán)

上傳時(shí)間： 2021-12-18

上傳用戶：2590813506

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