关于“得到”的问题在红宝石中
我想知道为什么当我尝试获取不同的输入时，它会忽略我的第二个输入。
#!/usr/bin/env ruby
#-----Class Definitions----
class Animal
attr_accessor :type, :weight
end
class Dog < Animal
attr_accessor :name
def speak
puts "Woof!"
end
end
#-------------------------------
puts
puts "Hello World!"
puts
new_dog = Dog.new
print "What is the dog's new name? "
name = gets
puts
print "Would you like #{name} to speak? (y or n) "
speak_or_no = gets
while speak_or_no == 'y'
puts
puts new_dog.speak
puts
puts "Would you like #{name} to speak again? (y or n) "
speak_or_no = gets
end
puts
puts "OK..."
gets
正如你所看到的，它完全忽略了我的 while 语句。
这是一个示例输出。
Hello World!
What is the dog's new name? bob
Would you like bob
to speak? (y or n) y
OK...
I was wondering why when I'm trying to gets to different inputs that it ignores the second input that I had.
#!/usr/bin/env ruby
#-----Class Definitions----
class Animal
attr_accessor :type, :weight
end
class Dog < Animal
attr_accessor :name
def speak
puts "Woof!"
end
end
#-------------------------------
puts
puts "Hello World!"
puts
new_dog = Dog.new
print "What is the dog's new name? "
name = gets
puts
print "Would you like #{name} to speak? (y or n) "
speak_or_no = gets
while speak_or_no == 'y'
puts
puts new_dog.speak
puts
puts "Would you like #{name} to speak again? (y or n) "
speak_or_no = gets
end
puts
puts "OK..."
gets
As you can see it completely ignored my while statement.
This is a sample output.
Hello World!
What is the dog's new name? bob
Would you like bob
to speak? (y or n) y
OK...
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问题是您在用户的输入中收到换行符。当他们输入“y”时，您实际上得到的是“y\n”。您需要使用字符串上的“chomp”方法来截断换行符，以使其按您的预期工作。像这样的东西：
The problem is you are getting a newline character on your input from the user. while they are entering "y" you are actually getting "y\n". You need to chomp the newline off using the "chomp" method on string to get it to work as you intend. something like:
一旦你使用 gets()...
使用 p(str) 打印该字符串..
通常字符串末尾会有 \n .. chomp！应该使用方法将其删除...
once you use gets()...
print that string.. using p(str)
usually string will have \n at the end.. chomp! method should be used to remove it...