Question

我编写了一个程序，可以查看您是否在聚会清单上。它工作正常，但我不想添加任何内容，因此您可以选择与该方默认的五个人相比，您的聚会中有多少人。谢谢，任何帮助将不胜感激。我刚开始感到抱歉，如果我不明白。

puts "Create a party"
puts "Who is the first person: "
first_person = gets.chomp.upcase()
puts "Who is the second person: "
second_person = gets.chomp.upcase()
puts "Who is the third person: "
third_person = gets.chomp.upcase()
puts "Who is the fourth person: "
fourth_person = gets.chomp.upcase()
puts "Who is the fifth person: "
fifth_person = gets.chomp.upcase()

friends_list = Array[first_person, second_person, third_person, fourth_person, fifth_person]

puts "What is your name?"
your_name = gets.chomp.upcase()

if friends_list.include? your_name
  puts "Congrats, you were invited"
else
  puts "Sorry, you weren't invited. Please check with the host of the party for more details"
end

Answer 1

您开始学习Ruby真是太好了！

您可以使用循环。首先创建一个数组，并将名称push放入其中。

puts "Create a party"
puts "Enter blank if you are done"

friends_list = []  # new array
count = 1
loop do
  print count.to_s + "th person's name: "
  name = gets.chomp.upcase
  break if name.empty?
  friends_list.push(name)  # add person to list
  count += 1
end

puts "What is your name?"
your_name = gets.chomp.upcase()

if friends_list.include? your_name
  puts "Congrats, you were invited"
else
  puts "Sorry, you weren't invited. Please check with the host of the party for more details"
end

Answer 2

这是方法中的分组说明示例，因此您可以重用某些内容（请参见get_name），成为DRY。

此外，它使用哈希将人员详细信息存储到数组中。

程序一直在loop to中运行，直到被用户输入中断为止。

def run
  people = []
  loop do
    show_options
    answer = gets.chomp.downcase.to_sym
    case answer
    when :a
      add_person_to people
    when :l
      list people
    when :f
      find_in people
    else
      break
    end
  end
end

def show_options
  puts "-"*50
  puts "A: add person"
  puts "L: list people"
  puts "F: find person"
  puts "any other key: exit"
end

def get_name
  puts "Name?"
  name = gets.chomp.capitalize
  puts "Nickname?"
  nickname = gets.chomp.capitalize
  {name: name, nickname: nickname}
end

def add_person_to people
  puts "Adding person nr. #{people.size + 1}"
  people << get_name # check if already present?
end

def list people
  puts "-"*50
  people.each { |person| puts "Name: #{person[:name]} - Nickname: #{person[:nickname]}" }
  puts "Total people: #{people.size}"
end

def find_in people
  puts people.include? get_name # or improve
end

run # this calls the run method

如何在我的红宝石计划中添加无限数量的人

2 个答案: