雜湊法(Hashing)的搜尋與一般的搜尋法(searching)是不一樣的。在雜湊法中,鍵值(key value)或識(shí)別字(identifier)在記憶體的位址是經(jīng)由函數(shù)(function)轉(zhuǎn)換而得的。此種函數(shù),一般稱(chēng)之為雜湊函數(shù)(Hashing function)或鍵值對(duì)應(yīng)位址轉(zhuǎn)換(key to address transformation)。對(duì)於有限的儲(chǔ)存空間,能夠有效使用且在加入或刪除時(shí)也能快的完成,利用雜湊法是最適當(dāng)不過(guò)了。因?yàn)殡s湊表搜尋在沒(méi)有碰撞(collision)及溢位(overflow)的情況下,只要一次就可擷取到。
上傳時(shí)間: 2013-12-23
上傳用戶:dancnc
BCB 編寫(xiě)的一些簡(jiǎn)單函數(shù)用于SQL的擴(kuò)展存儲(chǔ)過(guò)程. -檢查文件是否存在Select dbo.FileExist( c:\boot.ini ) --刪除文件Select dbo.FileDelete( C:\X.txt ) --服務(wù)狀態(tài)Select dbo.ServerStat( awhost32 ,1) --建立目錄Select dbo.MKDIR( C:\Test\test ,1) --文件復(fù)制Select dbo.FileCopy( C:\boot.ini , c:\Boot\YYY.ini ,1) --刪除目錄Select dbo.RDDIR( C:\Text ,1) --鎖定計(jì)算機(jī)Select dbo.LockPc() --結(jié)束程序Select dbo.KillPorg( Notepad.exe ) --執(zhí)行程序Select dbo.StartPorg( Notepad.exe ) --得到IP地址Select dbo.GetIP() --分解字符Select dbo.TextPart( 123*456*789 , * ,0) QQ:254082939 Email:haihong5995037@163.com
標(biāo)簽: Select FileDelete FileExist dbo
上傳時(shí)間: 2014-01-22
上傳用戶:1109003457
The SMS-Receiver program is intended for circuit phone incoming SMS receiving. The messages are writed in log file SMS_Receiver.log & cleared from phone then. There s a log strings format: MM/DD/YYYY HH:MM PhoneNo, Message text (Date) (Time)
標(biāo)簽: SMS-Receiver The receiving intended
上傳時(shí)間: 2015-06-01
上傳用戶:zl5712176
遺傳求解求解一元二次方程的解源程序(下載點(diǎn)擊GAdownload.c) 說(shuō)明: 1 popu變量表示群體規(guī)模 2 L變量表示染色體的長(zhǎng)度 3 pc,pm變量分別代表是交叉概率和變異概率 4 gen是迭代的代數(shù) 4 chromosome是一個(gè)全局的二維數(shù)組,里面存放的是個(gè)體的編碼 5 程序最后的執(zhí)行結(jié)果輸出到了text.txt文本文件中
標(biāo)簽: GAdownload popu 變量 概率
上傳時(shí)間: 2015-06-03
上傳用戶:youth25
本程序需在DOS下運(yùn)行。每運(yùn)行一次可執(zhí)行程序random.exe,即可顯示任意兩個(gè) 16進(jìn)制數(shù)的加法或減法表達(dá)式及其運(yùn)算結(jié)果。在減法運(yùn)算中,如果被減數(shù)小于減數(shù),顯示 “Divide Overflow”的提示信息。
上傳時(shí)間: 2014-01-14
上傳用戶:love1314
A C++ N-grams Package 2.0 This is a simple C++ n-grams package that includes a header, the corresponding cpp file, and a sample driver program. It is a natural language processing tool for creating n-gram profiles for text documents. The details on usage is documented in the header right above each public function defined. This package is based on Dr. Vlado Keselj s Perl package Text::Ngrams which is available in CPAN.
標(biāo)簽: includes correspo N-grams Package
上傳時(shí)間: 2015-06-12
上傳用戶:wfl_yy
本程序需在DOS下運(yùn)行。每運(yùn)行一次可執(zhí)行程序random.exe,即可顯示任意兩個(gè) 16進(jìn)制數(shù)的加法或減法表達(dá)式及其運(yùn)算結(jié)果。在減法運(yùn)算中,如果被減數(shù)小于減數(shù),顯示 “Divide Overflow”的提示信息。
上傳時(shí)間: 2015-06-27
上傳用戶:talenthn
IDL開(kāi)發(fā)源碼,可以使用text文檔文件進(jìn)行編寫(xiě),運(yùn)行要在IDL環(huán)境中。作用:添加影像
上傳時(shí)間: 2013-12-18
上傳用戶:lingzhichao
The Art of C++ by Herbert Schildt ISBN:0072255129 McGraw-Hill/Osborne © 2004 The author of this text applies C++ to a wide variety of high-powered, practical applications, each focusing on a different aspect of the language. Examples range from a garbage collector subsystem and a thread control panel to AI-based searches and more.
標(biāo)簽: McGraw-Hill 0072255129 The Herbert
上傳時(shí)間: 2015-07-18
上傳用戶:lx9076
1)Learn more about the capabilities in Quartus: 2)Learn to use different design entry techniques 2)Design entry methods available within Quartus Text editor,Block diagram/schematic file editor, Quartus interface with design entry/synthesis tools from Exemplar, Synopsys, Synplicity and Viewlogic
標(biāo)簽: Learn capabilities techniques different
上傳時(shí)間: 2014-01-18
上傳用戶:yxgi5
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