Question

我试图将从方法中获取的整数追加到字符串中，我尝试了多种不同的东西：<<和.concat（尽管相同）+=好我选择使用我正在处理的函数来创建该方法，稍后将添加该函数此代码的问题在于，它不会返回my string + firstrandomnumber + secondrandomnumber，而只返回my string + latestrandomnumber

def machineSlot() 
  tal1= rand(0..10)
  return tal1
end
#makes the a random number

if startBool == true
  #game startof

  gameRunner=true
  puts 'pull the lever with x'
  leverPullTry =gets.chomp

  while gameRunner
    #keeps game running

    i=1
    slotThread='Your numbers are:'
    #initialise game rollcount i and string that keeps the numbers

    if leverPullTry=='x'
      slotThread.concat( machineSlot.to_s)
      #if x was entered the slotThread appends a random number

      puts slotThread
      #slotThreads current process

      puts 'pull the lever with x again'
      i+=1
      #number of rolls increased

      leverPullTry =gets.chomp
    else
      puts 'try again use type x to pull'
      leverPullTry =gets.chomp
      #user didnt manage to input anything correct

    end
  end
end

Answer 1

更改这两行：

  slotThread.concat( machineSlot.to_s)
  #if x was entered the slotThread appends a random number

  puts slotThread
  #slotThreads current process

到

puts "#{slotThread}#{machineSlot}"

这就是所谓的字符串插值，在ruby中使用了很多东西。

顺便说一句，您使用CamelCase命名变量和方法，这不是常规。不紧急，但有空的时候我会查看this。

使用.concat将随机整数附加到字符串

1 个答案: