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#include<stdio.h> #include<windows.h> int xuanxiang; int studentcount; int banjihao[100]; int xueqihao[100][10]; char xm[100][100]; int xuehao[100][10]; int score[100][3]; int yuwen; int shuxue[000]; int yingyu[100]; int c[100]; int p; char x[1000][100]="",y[100][100]="";/*x學院 y專業 z班級*/ int z[100]; main() { void input(); void inputsc(); void alter(); void scbybannji(); printf("--------學生成績管理-----\n"); printf("請按相應數字鍵來實現相應功能\n"); printf("1.錄入學生信息 2.錄入學生成績 3.修改學生成績\n"); printf("4.查詢學生成績 5.不及格科目及名單 6.按班級輸出學生成績單\n"); printf("請輸入你要實現的功能所對應的數字:"); scanf("%d",&xuanxiang); system("cls"); getchar(); switch (xuanxiang) { case 1:input(); case 2:inputsc(); case 3:alter(); /*case 4:select score(); case 5:bujigekemujimingdan();*/ case 6:scbybanji; } } void input() { int i; printf("請輸入你的學院名稱:"); gets(x); printf("請輸入你的專業名稱:"); gets(y); printf("請輸入你的班級號:"); scanf("%d",&z); printf("請輸入你們一個班有幾個人:"); scanf("%d",&p); system("cls"); for(i=0;i<p;i++) { printf("請輸入第%d個學生的學號:",i+1); scanf("%d",xuehao[i]); getchar(); printf("請輸入第%d個學生的姓名:",i+1); gets(xm[i]); system("cls"); } printf("您已經錄入完畢您的班級所有學生的信息!\n"); printf("您的班級為%s%s%s\n",x,y,z); /*alter(p);*/ } void inputsc() { int i; for(i=0;i<p;i++) { printf("\n"); printf("--------------------------------------------------------------------------------\n\n"); printf("\t\t\t\t錄入學生的成績\n\n\n"); printf("--------------------------------------------------------------------------------\n\n"); printf("\t\t\t\t%s\n",xm[i]); printf("\n"); printf("\t\t\t\t數學:"); scanf("%d",&shuxue[i]); printf("\n"); getchar(); printf("\t\t\t\t英語:"); scanf("%d",&yingyu[i]); printf("\n"); getchar(); printf("\t\t\t\tc語言:"); scanf("%d",&c[i]); system("cls"); } } void alter() { int i;/*循環變量*/ int m[10000];/*要查詢的學號*/ int b;/*修改后的成績*/ char kemu[20]=""; printf("請輸入你要修改的學生的學號"); scanf("%d",&m); for (i=0;i<p;i++) { if (m==xuehao[i]) { printf("%s的數學成績為%d,英語成績為%d,c語言成績為%d,xm[i],shuxue[i],yingyu[i],c[i]"); printf("請輸入你想修改的科目");} } gets(kemu); getchar(); if (kemu=="數學"); { scanf("%d",&b); shuxue[i]=b;} if (kemu=="英語"); { scanf("%d",&b); yingyu[i]=b;} if (kemu=="c語言"); { scanf("%d",&b); c[i]=b; } printf("%s的數學成績為%d,英語成績為%d,c語言成績為%d,xm[i],shuxue[i],yingyu[i],c[i]"); } void scbybannji() { int i; char zyname[20]; int bjnumber; printf("請輸入你的專業名稱"); scanf("%s",&zyname); printf("請輸入你的班級號"); scanf("%d",&bjnumber); for (i=0;i<p;i++) { if (zyname==y[i]); if (bjnumber==z[i]); printf("專業名稱%s班級號%d數學成績%d英語成績%dc語言成績%d，y[i],z[i],shuxue[i],yingyu[i],c[i]"); } }
標簽： c語言
上傳時間： 2018-06-08
上傳用戶：2369043090
在包 hugeinteger 中創建功能類 HugeInteger，該類用來存放和操作一個不超過 40 位的大整數。 (1) 定義一個構造函數，用來對大整數進行初始化。參數為一個字符串。 (2) 定義 input 成員函數，實現大整數的重新賦值。參數為一個字符串，無返回 值。 (3) 定義 output 成員函數，將大整數輸出到屏幕上。無參數無返回值。 (4) 定義 add 成員函數，實現兩個大整數的加法。參數為一個 HugeInteger 對 象，無返回值，例如： HugeInteger A = new HugeInteger("12345"); HugeInteger B = new HugeInteger("1234"); A.add(B); 此時，A 為 13579，B 為 1234。 (5) 定義 sub 成員函數，實現兩個大整數的減法。參數和返回值同 add 函數。 (6) 定義若干大整數關系運算的成員函數，包括 isEqualTo（等于，=）、 isNotEqualTo（不等于，≠）、isGreaterThan（大于，>）、isLessThan（小 于，<）、isGreaterThanOrEqualTo（大于等于，≥）和 isLessThanOrEqualTo （小于等于，≤）。這些函數的參數為一個 HugeInteger 對象，返回值為一個 布爾類型，表示關系運算的結果，例如： HugeInteger A = new HugeInteger("12345"); HugeInteger B = new HugeInteger("1234"); 那么此時 A.isGreaterThan(B)的結果應當為 True，表示 12345>1234。
上傳時間： 2019-06-01
上傳用戶：idealist
Once upon a time, cellular wireless networks provided two basic services: voice telephony and low-rate text messaging. Users in the network were separated by orthogonal multiple access schemes, and cells by generous frequency reuse patterns [1]. Since then, the proliferation of wireless services, fierce competition, andthe emergenceof new service classes such as wireless data and multimediahave resulted in an ever increasing pressure on network operators to use resources in a moreefficient manner.In the contextof wireless networks,two of the most common resources are power and spectrum—and, due to regulations, these resources are typically scarce. Hence, in contrast to wired networks, overprovisioning is not feasible in wireless networks.
標簽： Maximization Nonconvex Wireless Utility Systems in
上傳時間： 2020-06-01
上傳用戶：shancjb
n recent years, there have been many books published on power system optimization. Most of these books do not cover applications of artifi cial intelligence based methods. Moreover, with the recent increase of artifi cial intelligence applications in various fi elds, it is becoming a new trend in solving optimization problems in engineering in general due to its advantages of being simple and effi cient in tackling complex problems. For this reason, the application of artifi cial intelligence in power systems has attracted the interest of many researchers around the world during the last two decades. This book is a result of our effort to provide information on the latest applications of artifi cial intelligence to optimization problems in power systems before and after deregulation.
標簽： Intelligence Artificial System Power in
上傳時間： 2020-06-10
上傳用戶：shancjb
小車資料 - 0樹莓派教程2016-0804 - 0樹莓派入門套件A光盤.rar - 2.87GB（網盤）B套餐資料.rar - 507.56MBC盤.rar - 1.31GBB套餐資料.rar - 1.87GBB盤.rar - 2.35GBA盤.rar - 2.07GB40118樹莓派實戰指南（教學視頻與源代碼）.rar - 3.01GB微雪5寸顯示器config - 0樹莓派詳細資料 - 0視頻教程 - 0RaspberryPi配件安裝視頻.mp4 - 13.49MB6、樹莓派小車系列之按鍵控制小車.mp4 - 197.46MB
上傳時間： 2022-06-05
上傳用戶：
|- 我的虛擬機和ubuntu下載 - 0 B|- 騰訊課堂公開課 - 0 B|- 工具軟件 - 0 B|- X210光盤資料 - 0 B|- 4.C語言專題精講篇 - 0 B|- 2.uboot和linux內核移植 - 0 B|- 1.ARM裸機全集 - 0 B|- 0.基礎預科 - 0 B|- 專用播放器第一代-已不用，請下載第二代.rar - 18.10 MB|- 專用播放器-《朱老師物聯網大講堂》收費視頻.rar - 18.10 MB|- 朱老師物聯網大講堂高級課程專用播放器-第二代.rar - 28.10 MB
標簽： 物聯網
上傳時間： 2022-06-06
上傳用戶：
|- 數據科學速查表 - 0 B|- 遷移學習實戰 - 0 B|- 零起點Python機器學習快速入門 - 0 B|- 《深度學習入門：基于Python的理論與實現》高清中文版PDF+源代碼 - 0 B|- 《Python生物信息學數據管理》中文版PDF+英文版PDF+源代碼 - 0 B|- 《Python深度學習》2018中文版pdf+英文版pdf+源代碼 - 0 B|- 《Python編程：從入門到實踐》中文版+源代碼 - 0 B|- stanford machine learning - 0 B|- Python語言程序設計2018版電子教案 - 0 B|- Python網絡編程第三版 （原版+中文版+源代碼） - 0 B|- Python機器學習實踐指南（中文版帶書簽）、原書代碼、數據集 - 0 B|- python官方文檔 - 0 B|- Python編程(第4版 套裝上下冊) - 0 B|- PyQt5快速開發與實戰（pdf+源碼） - 0 B|- linux - 0 B|- 征服PYTHON-語言基礎與典型應用.pdf - 67.40 MB|- 與孩子一起學編程_中文版_詳細書簽.pdf - 69.10 MB|- 用Python做科學計算.pdf - 6.10 MB|- 用Python寫網絡爬蟲.pdf - 9.90 MB|- 用Python進行自然語言處理(中文翻譯NLTK).pdf - 4.40 MB|- 像計算機科學家那樣思考 Python中文版第二版.pdf - 712.00 kB|- 網絡爬蟲－Python和數據分析.pdf - 6.90 MB|- 圖解機器學習.pdf - 59.40 MB|- 凸優化.pdf - 5.70 MB|- 數據挖掘導論.pdf - 2.50 MB|- 數據科學入門.pdf - 13.30 MB|- 數據結構與算法__Python語言描述_裘宗燕編著_北京：機械工業出版社_，_2016.01_P346.pdf - 74.30 MB|- 神經網絡與深度學習.pdf - 92.60 MB|- 深入Python3...
標簽： python
上傳時間： 2022-06-06
上傳用戶：
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上傳時間： 2022-06-06
上傳用戶：
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codechange exhibits 1⁄2 LSB differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 LSB will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an LSB.LSB (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a slope whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
標簽： Converters Defini DAC
上傳時間： 2013-10-30
上傳用戶：stvnash
Power conversion by virtue of its basic role produces harmonics due to theslicing of either voltages or currents. To a large extent the pollution in theutility supply and the deterioration of the power quality has been generatedor created by non-linear converters. It is therefore ironic that power convertersshould now be used to clean up the pollution that they helped to create inthe first place.In a utility system, it is desirable to prevent harmonic currents (which resultin EMI and resonance problems) and limit reactive power flows (whichresult in transmission losses).Traditionally, shunt passive filters, comprised of tuned LC elements andcapacitor banks, were used to filter the harmonics and to compensate forreactive current due to non-linear loads. However, in practical applicationsthese methods have many disadvantages.
上傳時間： 2013-11-05
上傳用戶：AISINI005
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