So which of the three languages is the best to use on your project? That depends a great deal on what you want to accomplish. To wrap up the book, I've outlined some of the pros and cons of each language in this
Ubuntu下搭建Ruby On RailsRuby On Rails是一個用Ruby語言寫的開源Web架構,和J2EE,PHP等類似。Ruby On Rails是一個非常優美的Web開發架構,並且融入了敏捷開發的精髓:約定大於配置。你會發現,它真的是一個非常優美的架構!今天我們介紹如何在Ubuntu下搭建Ruby On Rails開發環境。1.既然Ruby On
動態規劃解決矩陣連乘問題,隨機產生矩陣序列,輸出形如((A1(A2A3))(A4A5))的結果。代碼:#encoding: utf-8=beginauthor: xu jin, 4100213date: Oct 28, 2012MatrixChainto find an optimum order by using MatrixChain algorithmexample output:The given array is:[30, 35, 15, 5, 10, 20, 25]The
演算法導論上的偽碼改寫而成,加上導論的課後練習第一題的解的建構函式。#encoding: utf-8=beginauthor: xu jindate: Nov 11, 2012Optimal Binary Search Treeto find by using EditDistance algorithmrefer to <<introduction to algorithms>>example output:"k2 is the root of the
最長公用子序列,LCS,動態規劃實現。#encoding: utf-8#author: xu jin, 4100213#date: Nov 01, 2012#Longest-Commom-Subsequence#to find a longest commom subsequence of two given character arrays by using LCS algorithm#example output:#The random character arrays are: ["b",
利用動態規划算法,實現最短編輯距離的計算。#encoding: utf-8#author: xu jin#date: Nov 12, 2012#EditDistance#to find the minimum cost by using EditDistance algorithm#example output:# "Please input a string: "# exponential# "Please input the other string: "# polynomial#
Why's Lucky Stiff 上看來的。俺只是搬運工。能讀原文的老大們不用往下看了。嗯,假如一個類裡有個執行個體方法。我們希望這個方法只運行一次。”切,我還以為是搶雞蛋呢“,熟讀鐵撬書的老大們開始嗤之以鼻,”不就是第391頁裡Tadayoshi Funaba的once嗎?就連上一篇《吃了大力丸的Ruby》也有類似的實現”:01: def once(*ids)02: for id in ids03: module_eval <<- "end;"04: