如何在散列內創建散列

Question

我如何能夠在散列內創建散列，並且嵌套散列具有用於標識它的鍵。另外，我在嵌套哈希創建的元素，我怎麼能對他們有鍵以及

例如

test = Hash.new() 

#create second hash with a name?? test = Hash.new("test1")?? 
test("test1")[1] = 1??? 
test("test1")[2] = 2??? 

#create second hash with a name/key test = Hash.new("test2")??? 
test("test2")[1] = 1?? 
test("test2")[2] = 2?? 

謝謝

Answer 1

my_hash = { :nested_hash => { :first_key => 'Hello' } } 

puts my_hash[:nested_hash][:first_key] 
$ Hello 

或

my_hash = {} 

my_hash.merge!(:nested_hash => {:first_key => 'Hello' }) 

puts my_hash[:nested_hash][:first_key] 
$ Hello 

Answer 2

喬爾的是我會做的，但也可以這樣做：

test = Hash.new() 
test['test1'] = Hash.new() 
test['test1']['key'] = 'val' 

Answer 3

h1 = {'h2.1' => {'foo' => 'this', 'cool' => 'guy'}, 'h2.2' => {'bar' => '2000'} } 
h1['h2.1'] # => {'foo' => 'this', 'cool' => 'guy'} 
h1['h2.2'] # => {'bar' => '2000'} 
h1['h2.1']['foo'] # => 'this' 
h1['h2.1']['cool'] # => 'guy' 
h1['h2.2']['bar'] # => '2000'