Ruby学习笔记1 -- 基本语法和数据类型, Class
Ruby 有4种数据类型:String, Boolen, Array, Hashes Ruby 有3种操作方法:Method, attribute, ?? Ruby 有xxx: Classes, Object.... ====先来看数据类型==== 1. String and Declaring the variables: name = "Wonder Woman" #declare a var and store a string puts name <span style="white-space:pre"> </span>#puts -- print out the var sum = 5 + 1.4 puts sum correct = 1 == 1 puts correct 2. Arrays: cities = ["chongqing","beijing","shanghai"] puts cities[1]; #print out the SECOND city 3.Hashes: 注意这句话:We can access any value by naming its key seasons = { "Spring" => 20, "Summer"=>30, "Autumn"=>20, "Winter"=>02} puts seasons["Winter"] #{ ?
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