Questions that are independent of programming language.  These questions are typically more abstract than other categories. Free Language Agnostic Programming Books 97 Things Every Programmer Should Know Algorithms and Data-Structures (PDF) Algorithm…

Contents Tutorial Hello, World Command-Line Arguments Finding Duplicate Lines A Web Server Loose Ends Program Structure Names Declarations Variables Assignments Type Declarations Packages and Files Scope Basic Data Types Integers Floating-Point Numbe…

It’s been a year since I revealed the best languages to learn in 2013. Once again, I’ve examined the data produced by Jobs Tractor who analyzed more than 45,000 developer jobs advertised on Twitter during the past twelve months. The results: Java 8,7…

The Go Programming Language Specification go语言规范 Version of May 9, 2018 Introduction 介绍 Notation 符号 Source code representation 源代码表示形式 Characters 字符 Letters and digits 字母和数字 Lexical elements 词法元素 Comments 评论 Tokens 令 牌 Semicolons 分号 Identifiers 标识符 K…

probably Unix Shell scripts, Perl, or Python and R can be the best options. ---------- 1-python 2-R 3-perl ---------- I would say, Python AND R. Although, just python would be sufficient already, it has great capabilities (including bioinformatics li…

https://talks.golang.org/2012/splash.article Go at Google: Language Design in the Service of Software Engineering Rob Pike Google, Inc. @rob_pike http://golang.org/s/plusrob http://golang.org Contents Abstract Introduction Go at Google Pain points De…

iOS Swift-元组tuples(The Swift Programming Language) 什么是元组? 元组(tuples)是把多个值组合成一个复合值,元组内的值可以使任意类型,并不要求是相同类型. 元组长什么样? 如下: let nameAndAge = ("旭宝爱吃鱼",22); print(nameAndAge); 打印出了什么呢? 如下: ("旭宝爱吃鱼", 22) 是不是对元组有了清晰的了解了呢... 那么下面继续深入了解一下. 元组的分解 比…

iOS Swift-控制流(The Swift Programming Language) for-in 在Swift中for循环我们可以省略传统oc笨拙的条件和循环变量的括号,但是语句体的大括号使我们必须要写的,拿一个遍历数组的例子来介绍: //遍历数组中的元素 let listArray = [1,2,3,4,5,6,7,8,9]; for number in listArray { print(number) } 如果我们想让循环体循环10次我们该怎么去做呢??? //这是一个很不错的方法…

iOS Swift-简单值(The Swift Programming Language) 常量的声明:let 在不指定类型的情况下声明的类型和所初始化的类型相同. //没有指定类型,但是初始化的值为int.因此constant的类型为int let constant = 100 在制定类型的情况下声明的类型要和初始化的类型相同,否则报错. //这是正确的写法 let constant: Int = 100 //这是错误的写法会报错 let constant: Int = 100.0 变量的声明…

引用:Java Programming Language Enhancements Java Programming Language Enhancements Enhancements in Java SE 7 Binary Literals - In Java SE 7, the integral types (byte, short, int, and long) can also be expressed using the binary number system. To specif…