下面的代码输出333代替9.如何将字符串加在一起
如何更改它以打印总和计算而不是字符连接?
puts 'What is your first name?'
first = gets.chomp
puts 'What is your middle name?'
middle = gets.chomp
puts 'What is your last name?'
last = gets.chomp
var1 = first.length.to_s
var2 = middle.length.to_s
var3 = last.length.to_s
puts 'Did you know there are ' + var1 + var2 + var3 + ' characters in your name, ' + first + ' ' + middle + ' ' + last
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