为什么我不能把我需要的所有角色都放在一个数组中?

时间:2017-04-27 02:38:29

标签: ruby

我制作了一个程序,我需要将所有可能的字符放在一个数组中。 在这里我创建我的变量只是为了读取名称

print "write your name: "
name1 = gets.chomp

然后我尝试将所有字符放在数组中,例如,如果你的名字是John,数组将是:J,Jo,Joh,john

arrayNames = []
number = name1.length
number.times {|i| 
    arrayNames[i] = name1.slice(0,i)
}
arrayNames << name1

然后阅读它,我想制作一个排列程序,我写道:

numb = name1.length+ 1
numb2 = anotherVariable.length + 1
numb.times {|j|
    numb2.times {|k|
        perm = [arrayNames[j],theSecondArray[k]]
        p perm
        file1.puts
    }
}

当然我已经制作了file1,并且我拥有与arrayNames完全相同的第二个数组代码,但是不起作用。它甚至没有显示错误。生病将所有代码放在一起

class Data
    def initialize
    end
    def dataIn
        print "write your name: "
        $name = gets.chomp
        print "write your surname: "
        $surname = gets.chomp
    end
    def dataName
        $passwordName = []
        numb =  $name.length
        numb.times {|i|
            $passwordName[i] = $name.slice(0,i)
        $passwordName << $name
    end
    def dataSurn
        $passwordSur = []
        numb = $surname.length
        numb.times {|i|
            $passwordSur[i] = $surname.slice(0,i)
        }
        $passwordSur << $surname
    end 
    def alg1
        numb = $name.length + 1
        numb2 = $surname.length + 1
        numb.times {|i|
            numb2.times {|j|
                perm = [$passwordName[i], $passwordSur[j]].permutation.map {|k| 
                k.join} 
                p perm
                $archivos.puts perm                 
            }
        }
    end
end

代码本身有点复杂,但我的问题是一样的。方法alg1不工作。然后我只是调用它们并创建文件

data = Data.new()
datos.dataIn
$archivos = File.new("passwords",'w+')
File.open("passwords")
data.datosName
data.datosSurn
data.alg1
gets()

1 个答案:

答案 0 :(得分:0)

我不确定你要做什么,但Ruby的内置数组方法将让你的生活更轻松:

>> name1 = 'John'
=> "John"
>> names = (0...name1.length).map { |i| name1[0..i] }
=> ["J", "Jo", "Joh", "John"]
>> other = ['dog', 'wolf', 'sheep']
=> ["dog", "wolf", "sheep"]
>> result = names.product(other)
=> [["J", "dog"],
 ["J", "wolf"],
 ["J", "sheep"],
 ["Jo", "dog"],
 ["Jo", "wolf"],
 ["Jo", "sheep"],
 ["Joh", "dog"],
 ["Joh", "wolf"],
 ["Joh", "sheep"],
 ["John", "dog"],
 ["John", "wolf"],
 ["John", "sheep"]]