你如何在Ruby中执行python"for-each"？

Question

foo = [3, 6, 3]
for a in foo:
    print a

我怎么用红宝石做到这一点？

Answer 1

list = %w( a b c )

# there's a for statement but nobody likes it :P
for item in list
  puts item
end

# so you use the each method with a block instead

# one-liner block
list.each { |item| puts item }

# multi-line block
list.each do |item|
  puts item
end