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  • JSP中session的建立和使用

    JSP中session的建立和使用,要點(diǎn):如果只想得到會(huì)話中已經(jīng)存在的信息,可以使用getSession(FALSE)。否則用其他方法,會(huì)創(chuàng)建新會(huì)話,浪費(fèi)資源。

    標(biāo)簽: session JSP

    上傳時(shí)間: 2017-02-05

    上傳用戶:manking0408

  • public class CircleMenuCanvas extends Canvas implements Runnable{ double pi = Math.PI public fi

    public class CircleMenuCanvas extends Canvas implements Runnable{ double pi = Math.PI public final int MENURIGHT = 1 public final int MENULEFT = 0 Image menuImage[] = new Image[6] int []jiaodu = {330,30,90,150,210,270} String menuName[] = {"新游戲","繼續(xù)游戲","游戲設(shè)置","高分榜","游戲幫助","退出游戲"} int x = getWidth()/2 int y = getHeight()/2 int count = 0 int local int index = 0 Font f boolean running = FALSE /** * 構(gòu)造方法 * */

    標(biāo)簽: public CircleMenuCanvas implements Runnable

    上傳時(shí)間: 2014-01-08

    上傳用戶:zhaoq123

  • The Bit Array structure provides a compacted arrays of Booleans, with one bit for each Boolean value

    The Bit Array structure provides a compacted arrays of Booleans, with one bit for each Boolean value. A 0 [1] bit corresponds to the Boolean value FALSE [true], respectively. We can look at a stream of bytes as a stream of bits each byte contains 8 bits, so any n bytes hold n*8 bits. And the operation to manipulate this stream or bits array is so easy, jut read or change the bits state or make any Boolean operation on the whole bits array, like 鈥楢ND鈥? 鈥極R鈥? or 鈥榅OR鈥?

    標(biāo)簽: structure compacted Booleans provides

    上傳時(shí)間: 2014-01-15

    上傳用戶:壞天使kk

  • Use a one-dimensional array of primitive type boolean to represent the seating chart of the plane.

    Use a one-dimensional array of primitive type boolean to represent the seating chart of the plane. Initialize all the elements of the array to FALSE to indicate that all the seats are empty. As each seat is assigned, set the corresponding elements of the array to true to indicate that the seat is no longer available.

    標(biāo)簽: one-dimensional primitive represent the

    上傳時(shí)間: 2013-12-22

    上傳用戶:zhichenglu

  • procedure senddata var i:integer commflg : Boolean begin commflg:=true for i:=1

    procedure senddata var i:integer commflg : Boolean begin commflg:=true for i:=1 to 8 do begin if not fcomm comml writecommdata(sendbutter,i) then begin Commflg=FALSE break end end end (4) 接收數(shù)據(jù) 在編寫基于串口的計(jì)算機(jī)工業(yè)測(cè)控時(shí),通常需要由下位機(jī)向PC機(jī)發(fā)送數(shù)據(jù)以使PC機(jī)了解系統(tǒng)的測(cè)試數(shù)據(jù)或下位機(jī)的運(yùn)行狀態(tài),并進(jìn)而控制下位機(jī)的行為。利用Spcomm串口控件接收下位機(jī)發(fā)送的數(shù)據(jù)信息的示例代碼如下: //事件驅(qū)動(dòng)方式接收數(shù)據(jù)程序 procedure TForm1.CommlReceiveData(Sender:Tobject Buffer:Pointer bufferLength:Word) var receivedata:array of byte begin sleep(100) //等待100ms,保證接收到所有數(shù)據(jù) move(buffef ,receivedata,bufferlength) //將接收緩存區(qū)中的數(shù)據(jù)轉(zhuǎn)移到數(shù)組中 …… end (5) 關(guān)閉串口 在系統(tǒng)開發(fā)中,應(yīng)注意在不使用串口時(shí)應(yīng)及時(shí)關(guān)閉串口,釋放系統(tǒng)資源,否則可能會(huì)影響系統(tǒng)的其它應(yīng)用。關(guān)閉串口的代碼如下: procedure TForm1.FormClose ( Sender TObj ect:var Action:TCIoseAction ) begin comml.StopComm end

    標(biāo)簽: commflg procedure senddata integer

    上傳時(shí)間: 2014-01-26

    上傳用戶:懶龍1988

  • cppcheck is a static C/C++ code analyzer that checks for memory leaks, mismatching allocation-deallo

    cppcheck is a static C/C++ code analyzer that checks for memory leaks, mismatching allocation-deallocation, buffer overrun, and many more problems. Its goal is to produce no FALSE positives.

    標(biāo)簽: allocation-deallo mismatching cppcheck analyzer

    上傳時(shí)間: 2013-12-08

    上傳用戶:Zxcvbnm

  • 簽于目前市場(chǎng)上結(jié)合Query萬(wàn)能查詢的第三方控件

    簽于目前市場(chǎng)上結(jié)合Query萬(wàn)能查詢的第三方控件,適合DELPHI的特別多,如武稀松先生的WNQUERY,但適合CBUILDER的幾乎是麟毛鳳腳,由于公司產(chǎn)品上需要用到該功能,所以特別花了一天時(shí)間編了這個(gè)適合CBUILDER6版本的萬(wàn)能查詢模塊(如有需要亦可提供CBUILDER5的版本),供大家參考使用,改天有時(shí)間我會(huì)推出該系列的第三方控件,希望大家多提寶貴意見。 功能特點(diǎn): 1、結(jié)合adoQuery(只適合adoQuery),如需支持Query,請(qǐng)另行通知我; 2、結(jié)合adoQuery->Fields屬性,查詢條件可以根據(jù)Fields的Visiable屬性來定,也就是說Fields->Field[0]->Visiable=FALSE,這時(shí)你可以設(shè)置屬性既可以把這類字段作為查詢條件,也可以隱藏這類字段不作為查詢條件顯示; 3、根據(jù)字段類型顯示比較值,舉例說明:如果你選擇的是DateTime字段,那比較值自動(dòng)改為DateTimePicker,這比武稀松先生的WNQUERY要先進(jìn)多了; 4、可以單項(xiàng)條件查詢也可以多項(xiàng)條件結(jié)合查詢; 上海同文信息技術(shù)有限公司 趙秀江(David) http://www.twsoft.cn Email:mail@twsoft.cn david@twsoft.cn MSN:twsoft@hotmail.com QQ:5281034

    標(biāo)簽: Query 查詢 控件

    上傳時(shí)間: 2013-12-24

    上傳用戶:yy541071797

  • include <stdio.h> /*標(biāo)準(zhǔn)輸入輸出定義*/ #include <stdlib.h> /*標(biāo)準(zhǔn)函數(shù)庫(kù)定義*/ #inclu

    include <stdio.h> /*標(biāo)準(zhǔn)輸入輸出定義*/ #include <stdlib.h> /*標(biāo)準(zhǔn)函數(shù)庫(kù)定義*/ #include <unistd.h> /*Unix標(biāo)準(zhǔn)函數(shù)定義*/ #include <sys/types.h> /**/ #include <sys/stat.h> /**/ #include <fcntl.h> /*文件控制定義*/ #include <termios.h> /*PPSIX終端控制定義*/ #include <errno.h> /*錯(cuò)誤號(hào)定義*/ #define TRUE 1 #define FALSE 0 /***@brief 設(shè)置串口通信速率 *@

    標(biāo)簽: include stdlib inclu stdio

    上傳時(shí)間: 2017-05-07

    上傳用戶:ljt101007

  • 哲學(xué)家吃飯問題 當(dāng)五個(gè)人都拿到左手邊筷子

    哲學(xué)家吃飯問題 當(dāng)五個(gè)人都拿到左手邊筷子,都等待拿右手邊筷子,則因?yàn)檎l(shuí)都不能放下手中的筷子,這樣就進(jìn)入無止境的等待,構(gòu)成死鎖 * 解決方法1:奇數(shù)號(hào)先拿左邊的筷子,偶數(shù)號(hào)先拿右邊的筷子,即相鄰兩個(gè)人先拿其中間夾的筷子,使這個(gè)筷子成為臨界資源; * 解決方法2:兩邊的筷子都空閑時(shí),再拿筷子,if(chopstick.flag(n)==FALSE&&chopstick.flag(n 5)==FALSE); * 解決方法3:只允許(n-1)個(gè)人同時(shí)進(jìn)餐; * 本程序采用方法1 解決

    標(biāo)簽:

    上傳時(shí)間: 2017-05-27

    上傳用戶:zsjzc

  • This program contains the iterative methods of finding solutions of the equation f(x)=0, which are a

    This program contains the iterative methods of finding solutions of the equation f(x)=0, which are also known as the roots of the equation f(x)=0 The methods are: -bisection -FALSE position -newton raphson -secant

    標(biāo)簽: iterative the solutions contains

    上傳時(shí)間: 2013-12-27

    上傳用戶:jennyzai

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