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  • Harnessing Hibernate by James Elliott Timothy M. O Brien Ryan Fowler Publisher: O Reilly

    Harnessing Hibernate by James Elliott Timothy M. O Brien Ryan Fowler Publisher: O Reilly Pub Date: April 28, 2008 print ISBN-13: 978-0-596-51772-4 Pages: 380

    標(biāo)簽: M. Harnessing Hibernate Publisher

    上傳時間: 2017-08-04

    上傳用戶:bakdesec

  • The best way to learn ArcMap is to try it yourself. This tutorial guides you through some basic ArcM

    The best way to learn ArcMap is to try it yourself. This tutorial guides you through some basic ArcMap skills as you create and print a set of maps.

    標(biāo)簽: tutorial yourself through ArcMap

    上傳時間: 2017-08-17

    上傳用戶:集美慧

  • 程序名稱:學(xué)生管理信息管理系統(tǒng) 可以增加

    程序名稱:學(xué)生管理信息管理系統(tǒng) 可以增加,刪除,查找學(xué)生的資料。或者以格式化形式輸出在print.txt這個文件中。學(xué)生資料以二進(jìn)制儲存在datadase.dat中。 程序分為三個文件:student.h ,student.cpp, database.cpp 類Student.可以設(shè)置名字(包括firstName和lastName)還有id,歲數(shù)(age),score(評價).每個data member都有分別的member function來設(shè)置或者輸出.

    標(biāo)簽: 程序 管理信息 管理系統(tǒng)

    上傳時間: 2014-01-27

    上傳用戶:上善若水

  • 第一個Java程序 public class Practice { public static void main(String args[]) { System.out.print

    第一個Java程序 public class Practice { public static void main(String args[]) { System.out.println("**********************************") System.out.println("** Practice makes perfect") System.out.println("**********************************") } }

    標(biāo)簽: public Practice String System

    上傳時間: 2017-09-05

    上傳用戶:xiaoyunyun

  • pppdump

    pppdump - print out the contents of a record file generated by  pppd in readable form

    標(biāo)簽: ppp ppp解析

    上傳時間: 2016-03-26

    上傳用戶:guoshuai1996

  • java學(xué)生數(shù)據(jù)庫

    /*import java.util.Scanner; //主類 public class student122 {   //主方法   public static void main(String[] args){     //定義7個元素的字符數(shù)組     String[] st = new String[7];     inputSt(st);       //調(diào)用輸入方法     calculateSt(st);   //調(diào)用計算方法     outputSt(st);      //調(diào)用輸出方法   }   //其他方法   //輸入方法 private static void inputSt(String st[]){     System.out.println("輸入學(xué)生的信息:");   System.out.println("學(xué)號 姓名 成績1,2,3");   //創(chuàng)建鍵盤輸入類   Scanner ss = new Scanner(System.in);   for(int i=0; i<5; i++){     st[i] = ss.next(); //鍵盤輸入1個字符串   } }   //計算方法 private static void calculateSt(String[] st){   int sum = 0;         //總分賦初值 int ave = 0;         //平均分賦初值 for(int i=2;i<5;i++) {   /計總分,字符變換成整數(shù)后進(jìn)行計算   sum += Integer.parseInt(st[i]); } ave = sum/3;         //計算平均分 //整數(shù)變換成字符后保存到數(shù)組里 st[5] = String.valueOf(sum); st[6] = String.valueOf(ave); }   //輸出方法 private static void outputSt(String[] st){     System.out.print("學(xué)號 姓名 ");   //不換行   System.out.print("成績1 成績2 成績3 ");   System.out.println("總分 平均分");//換行   //輸出學(xué)生信息   for(int i=0; i<7; i++){     //按格式輸出,小于6個字符,補充空格     System.out.printf("%6s", st[i]);   }   System.out.println();            //輸出換行 } }*/   import java.util.Scanner;   public class student122 {   public static void main(String[] args) { // TODO 自動生成的方法存根 String[][] st = new String[3][8]; inputSt(st); calculateSt(st); outputSt(st); }   //輸入方法 private static void inputSt(String st[][]) { System.out.println("輸入學(xué)生信息:"); System.out.println("班級 學(xué)號 姓名 成績:數(shù)學(xué) 物理 化學(xué)"); //創(chuàng)建鍵盤輸入類 Scanner ss = new Scanner(System.in); for(int j = 0; j < 3; j++) { for(int i = 0; i < 6; i++) { st[j][i] = ss.next(); } } } //輸出方法 private static void outputSt(String st[][]) { System.out.println("序號 班級 學(xué)號 姓名 成績:數(shù)學(xué) 物理 化學(xué) 總分 平均分"); //輸出學(xué)生信息 for(int j = 0; j < 3; j++) { System.out.print(j+1 + ":"); for(int i = 0; i < 8; i++) { System.out.printf("%6s", st[j][i]); } System.out.println(); } }     //計算方法     private static void calculateSt(String[][] st)     {      int sum1 = 0;      int sum2 = 0; int sum3 = 0;      int ave1 = 0;      int ave2 = 0;      int ave3 = 0;      for(int i = 3; i < 6; i++)      {      sum1 += Integer.parseInt(st[0][i]);      }      ave1 = sum1/3;           for(int i = 3; i < 6; i++)      {      sum2 += Integer.parseInt(st[1][i]);      }      ave2 = sum2/3;           for(int i = 3; i < 6; i++)      {      sum3 += Integer.parseInt(st[2][i]);      }      ave3 = sum3/3;           st[0][6] = String.valueOf(sum1);      st[1][6] = String.valueOf(sum2);      st[2][6] = String.valueOf(sum3);      st[0][7] = String.valueOf(ave1);      st[1][7] = String.valueOf(ave2);      st[2][7] = String.valueOf(ave3);     } }

    標(biāo)簽: java 數(shù)據(jù)庫

    上傳時間: 2017-03-17

    上傳用戶:simple

  • python爬蟲獲取大量免費有效代理ip--有效防止ip被封

    以后再也不用擔(dān)心寫爬蟲ip被封,不用擔(dān)心沒錢買代理ip的煩惱了 在使用python寫爬蟲時候,你會遇到所要爬取的網(wǎng)站有反爬取技術(shù)比如用同一個IP反復(fù)爬取同一個網(wǎng)頁,很可能會被封。如何有效的解決這個問題呢?我們可以使用代理ip,來設(shè)置代理ip池。 現(xiàn)在教大家一個可獲取大量免費有效快速的代理ip方法,我們訪問西刺免費代理ip網(wǎng)址 這里面提供了許多代理ip,但是我們嘗試過后會發(fā)現(xiàn)并不是每一個都是有效的。所以我們現(xiàn)在所要做的就是從里面提供的篩選出有效快速穩(wěn)定的ip。 以下介紹的免費獲取代理ip池的方法: 優(yōu)點:免費、數(shù)量多、有效、速度快 缺點:需要定期篩選 主要思路: 從網(wǎng)址上爬取ip地址并存儲 驗證ip是否能使用-(隨機訪問網(wǎng)址判斷響應(yīng)碼) 格式化ip地址 代碼如下: 1.導(dǎo)入包 import requests from lxml import etree import time 1 2 3 2.獲取西刺免費代理ip網(wǎng)址上的代理ip def get_all_proxy():     url = 'http://www.xicidaili.com/nn/1'     headers = {         'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36',     }     response = requests.get(url, headers=headers)     html_ele = etree.HTML(response.text)     ip_eles = html_ele.xpath('//table[@id="ip_list"]/tr/td[2]/text()')     port_ele = html_ele.xpath('//table[@id="ip_list"]/tr/td[3]/text()')     proxy_list = []     for i in range(0,len(ip_eles)):         proxy_str = 'http://' + ip_eles[i] + ':' + port_ele[i]         proxy_list.append(proxy_str)     return proxy_list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 3.驗證獲取的ip def check_all_proxy(proxy_list):     valid_proxy_list = []     for proxy in proxy_list:         url = 'http://www.baidu.com/'         proxy_dict = {             'http': proxy         }         try:             start_time = time.time()             response = requests.get(url, proxies=proxy_dict, timeout=5)             if response.status_code == 200:                 end_time = time.time()                 print('代理可用:' + proxy)                 print('耗時:' + str(end_time - start_time))                 valid_proxy_list.append(proxy)             else:                 print('代理超時')         except:             print('代理不可用--------------->'+proxy)     return valid_proxy_list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 4.輸出獲取ip池 if __name__ == '__main__':     proxy_list = get_all_proxy()     valid_proxy_list = check_all_proxy(proxy_list)     print('--'*30)     print(valid_proxy_list) 1 2 3 4 5 技術(shù)能力有限歡迎提出意見,保證積極向上不斷學(xué)習(xí) ———————————————— 版權(quán)聲明:本文為CSDN博主「彬小二」的原創(chuàng)文章,遵循 CC 4.0 BY-SA 版權(quán)協(xié)議,轉(zhuǎn)載請附上原文出處鏈接及本聲明。 原文鏈接:https://blog.csdn.net/qq_39884947/article/details/86609930

    標(biāo)簽: python ip 代理 防止

    上傳時間: 2019-11-15

    上傳用戶:fygwz1982

  • Principles+of+Digital+Transmission

    This book stems from its ancestor Digital Transmission Theory,published by  Prentice-Hall in 1987 and now out of print. Following the suggestion of several colleagues who complained about the unavailability of a textbook they liked and adopted in their courses, laying a strong emphasis on wireless communication. We hope that those who liked the previous book will find again its flavor here,while new reader, untouched by nostalgia, will judge it favorably.

    標(biāo)簽: Transmission Principles Digital of

    上傳時間: 2020-05-31

    上傳用戶:shancjb

  • Virtualization Essentials

    The information age is exploding around us, giving us access to dizzying amounts of data the instant it becomes available. Smart phones and tablets provide an untethered experience that offers stream- ing video, audio, and other media formats to just about any place on the planet. Even people who are not “computer literate” use Facebook to catch up with friends and family, use Google to research a new restaurant choice and print directions to get there, or Tweet their reactions once they have sampled the fare. The budding Internet-of-things will only catalyze this data eruption. The infrastructure supporting these services is also growing exponentially, and the technology that facilitates this rapid growth is virtualization.

    標(biāo)簽: Virtualization Essentials

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • CH341系列編程器芯片usb轉(zhuǎn)串口Altium Designer AD原理圖庫元件庫

     CH341系列編程器芯片usb轉(zhuǎn)串口Altium Designer AD原理圖庫元件庫CSV text has been written to file : 1.9 - CH341系列編程器芯片.csvLibrary Component Count : 56Name                Description----------------------------------------------------------------------------------------------------CH311Q              PC debug port monitorCH331T              Mini USB Disk ControllerCH340G              CH340H              USB to TTL Serial / UART,  USB to IrDACH340T              USB to TTL Serial / UART,  USB to IrDACH340R              USB to IrDA, USB to RS232 SerialCH340S_P            USB to print Port / ParallelCH340S_S            USB to TTL Serial / UART, pin compatible with CH341CH341A_S            USB to TTL Serial / UART / I2C/IICCH341S_P            USB to print Port / ParallelCH341A_P            USB to print Port / ParallelCH341S_S            USB to TTL Serial / UARTCH341S_X            USB to EPP Parallel / SPI / I2C/IICCH341A_X            USB to EPP Parallel / SPI / I2C/IICCH341T              USB to TTL Serial / UART / I2C/IICCH345T              USB to MidiCH352L_M            PCI to 8255 mode 2 Parallel for MCU and 16C550 UART / IrDACH352L_P            PCI to print Port / Parallel and 16C550 UART / IrDACH352L_S            PCI to Dual 16C550 UART, TTL Serial*2 / IrDA*1CH362L              PCI Device / Slave only for RAM / Expansion ROMCH364F              Member of CH364 chipsetsCH364P              PCI Device / Slave Embedded Flash ROM, for Expansion ROMCH365P              PCI Device / Slave, for I/O port or RAM / ROMCH372T              USB Device / Slave for MCU, ParallelCH372A              USB Device / Slave for MCU, ParallelCH372V              USB Device / Slave for MCU, ParallelCH374S              USB Host & Device / Slave for MCU, parallel / SPICH374T              USB Host & Device / Slave for MCU, parallel / SPICH375S              USB Host & Device / Slave for MCU, parallel / UART SerialCH375A              USB Host & Device / Slave for MCU, parallel / UART SerialCH375V              USB Host & Device / Slave for MCU, parallel / UART SerialCH411G              FDC MFM encode and decodeCH421A              Dual port bufferCH421S              Dual port bufferCH423D              I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S              I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423D_D            I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S_D            I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423G              I2C/IIC I/O expander, 6 GPO + 5 GPIOCH432Q              Dual 16C550 UART with IrDA, parallel / SPICH432T              SPI Dual 16C550 UART with IrDACH450K              6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450H              6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450L              8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH451L              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451S              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451D              8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452L_2            8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452L_4            8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452S_2            8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452S_4            8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH453S              16 Digits / 128 LEDs Drive, I2C/IICCH453D              16 Digits / 128 LEDs Drive, I2C/IICPCI                 32Bit PCI Bus, simple / short cardPCI32               32Bit PCI BusUSB                 USB Port

    標(biāo)簽: ch341 編程芯片 usb 串口 altium designer

    上傳時間: 2022-03-13

    上傳用戶:

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