当然！以下是一些 Ruby 代码示例，涵盖了基本的编程概念，如变量、条件语句、循环、数组、哈希和函数。
1. 变量和输出
ruby
# 定义变量
name = "Alice"
age = 25
# 输出到控制台
puts "Hello, #{name}! You are #{age} years old."
2. 条件语句
ruby
# if 语句
score = 85
if score >= 90
puts "Excellent!"
elsif score >= 80
puts "Good!"
elsif score >= 70
puts "Average."
else
puts "Needs improvement."
end
3. 循环
each 循环
ruby
# 遍历数组
numbers = [1, 2, 3, 4, 5]
numbers.each do |number|
puts number * 2
end
for 循环
ruby
# for 循环
for i in 0..4
puts i
end
**`whi
