8. each_with_index 方法 each_with_index 方法在遍历数组或可枚举对象时,同时提供元素和其索引。 ruby fruits = ['apple', 'banana', 'cherry'] fruits.each_with_index do |fruit, index| puts "#{index + 1}. #{fruit}"
number = 5 number.times do puts "This is loop iteration number #{self}" end 复制代码 使用while循环: counter = 0 while counter < 5 puts "Counter: #{counter}" counter += 1 end 复制代码 使用for循环(在Ruby中不常用,但在某些情况下可以使用): for i in 1..5 puts "Iteration: #{i}...
for 循环 123456 # loop using range as expressiontext = "Ruby Cheatsheet"# using for loop with the rangefor count in 1..5 do puts textend 输出 12345 Ruby CheatsheetRuby CheatsheetRuby CheatsheetRuby CheatsheetRuby Cheatsheet do..while 循环 12345678910 # starting of do..while looploop do puts...
5] puts "循环1-5" for num in 1..5 do puts num end # 循环1-4 1...5 表示 左闭右开区间[1,5) puts "循环1-4" for num in 1...5 do puts num end # while循环 index1 = 0 while index1<5 do puts "index1的值是:"+index1.to_s index1 += 1 end # until循环 puts...
生命游戏是一个零玩家游戏，展示了一个二维方格子世界，在每个方格子中居住者一个活着的或者死了的细胞...
我们将继续来研究,探讨ruby的基操 1.方法的使用 def 方法名 #方法体 end #结束表示符 def swap()#可以加入参数 ~ #方法体 end#结束表示符 swap #直接调用 1. 2. 3. 4. 2.循环的使用 times, while,each,for,until,loop 5.times do puts "我执行了" ...
{and}deserve a bit of clarification, since they are used for block and hash literals, as well as string interpolation. For hash literals two styles are considered acceptable. The first variant is slightly more readable (and arguably more popular in the Ruby community in general). The second ...
Ruby Loop Ruby 中的 for 与 each Ruby Inheritance Ruby 中的 Kind_of、Instance_of 和 Is_a Ruby Map Ruby 中的 map 方法 在Ruby 中使用索引映射数组 Ruby Exception Ruby 中的 try...catch 在Ruby 中使用 begin 和 rescue 处理异常 Ruby Comment ...
Ruby is an interpreted object-oriented programming language often used for web development. It also offers many scripting features to process plain text and serialized files, or manage system tasks. It is simple, straightforward, and extensible....
planets = ["Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune"] index = 0 loop do puts "#{planets[index]}" index += 1 break if planets[index] == "Mars" or index > planets.size end until planets = ["Mercury", "Venus", "Earth", "Mars", "Jupi...