ruby哈希参数=[]参数<&书信电报；{:param=>；：testString，类型：：string}

我遇到了这个代码，无法理解它的实际功能。你能给我解释一下这是干什么的吗

params = [] 
params << {:param => :testString, type : :string}
params << {:param => :testJson, type : :string}

params=[]
参数：testString，类型：：string}
params:testJson，类型：：string}

正确的代码是（您的代码中有语法错误）：

或

params该方法将项附加到数组的末尾

a = []
a << 1
a << 2
a # => [1, 2]

下面是Thank Majioa的详细信息，这与之前粘贴的代码相同，params=[]params:testString，：type=>:string}params:testJson，：type=>:string}@Swamy在
：
之前对代码进行了一些更改，空格已被删除
params << {:param => :testString, type => :string}

params << {param: :testString, type: :string}

a = []
a << 1
a << 2
a # => [1, 2]

params << {:param => :testString, type : :string}
#                                     ^

params = [] #instantiate new array named params
params << {:param => :testString, type: :string} #uses the << method to push a hash into the params array
params << {:param => :testJson, type: :string} #uses the << method to push a hash into the params array

[{:param => :testString, type: :string},{:param => :testJson, type: :string}]