`

Nokogiri::XML::Node 方法举例

Nokogiri::XML::Node方法举例 
阅读更多 
#=================================================================================
#Here I will discuss several  Nokogiri::XML::Node#methods as in the
documentation
#=================================================================================

#===================================================================================
# Day - I :
# Methods wil be covered:
# #keys,#values,#content=,#set_attribute,#attributes,#content,#delete
#===================================================================================

require "nokogiri"

doc =  Nokogiri::XML('<foo><bar /><foo>', nil, 'EUC-JP')
node =  Nokogiri::XML::Node.new('a',doc) # =>
#<Nokogiri::XML::Element:0x41c8dac name="a">

node.content = "click here"
node.class # => Nokogiri::XML::Element

att = {'href' => "www.example.com","id"=>1425,:class => "dummy"}
att.each {|k,v| node.set_attribute(k,v)}
node.keys # => ["href", "id", "class"]
node.values # => ["www.example.com", "1425", "dummy"]

node.attributes
# => {"href"=>#(Attr:0x41c026a { name = "href", value =
"www.example.com" }),
#     "id"=>#(Attr:0x41c01c0 { name = "id", value = "1425" }),
#     "class"=>#(Attr:0x41c01b6 { name = "class", value = "dummy" })}

node.attributes.map{|k,v| [k,v.class,v.content]}
# => [["href", Nokogiri::XML::Attr, "www.example.com"],
#     ["id", Nokogiri::XML::Attr, "1425"],
#     ["class", Nokogiri::XML::Attr, "dummy"]]

Hash[node.keys.zip(node.values)]
# => {"href"=>"www.example.com", "id"=>"1425", "class"=>"dummy"}
node.content # => "click here"
node.delete "class" # => #<Nokogiri::XML::Attr:0x41c01b6 name="class"
value="dummy">
node.delete("class").class # => NilClass

node.attributes
# => {"href"=>#(Attr:0x41c026a { name = "href", value =
"www.example.com" }),
#     "id"=>#(Attr:0x41c01c0 { name = "id", value = "1425" })}

#===================================================================================
# Day - II :
# Methods wil be covered:
# #to_s,#to_str,#text,#text?
#===================================================================================

doc =  Nokogiri::XML('<foo><bar /><foo>', nil, 'EUC-JP')

node =  Nokogiri::XML::Node.new('a',doc) # =>
#<Nokogiri::XML::Element:0x41d09bc name="a">
node.content = "click here"
node.to_str # => "click here"
node.to_s # => "<a>click here</a>"
node.text # => "click here"
node.children # => [#<Nokogiri::XML::Text:0x41aa69a "click here">]
node.children.class # => Nokogiri::XML::NodeSet
node.children.map(&:text?) # => [true]
node.children.map(&:class) # => [Nokogiri::XML::Text]


node =  Nokogiri::XML::Node.new('title',doc)
node.content = "survey page"
node.to_str # => "survey page"
node.to_s # => "<title>survey page</title>"
node.text # => "survey page"
node.children # => [#<Nokogiri::XML::Text:0x4180ae8 "survey page">]
node.children.class # => Nokogiri::XML::NodeSet
node.children.map(&:class) # => [Nokogiri::XML::Text]

#===================================================================================
# Day - III :
# Methods wil be covered:
# #next,#next_element,#next_sibling,#node_name,#node_name[],#node_type,#
parent
# # parent=
#===================================================================================

require 'nokogiri'

doc = Nokogiri::XML(<<-eohl)
<Stock>
    <Code>7052</Code>
    <Name>PADINI</Name>
    <StockDailyRecords>
        <PriceOpen>1.2</PriceOpen>
        <PriceChange>1.1</PriceChange>
        <PriceClose>10.0</PriceClose>
        <Volume>3000000L</Volume>
    </StockDailyRecords>
    <StockDailyRecords>
        <PriceOpen>1.3</PriceOpen>
        <PriceChange>1.2</PriceChange>
        <PriceClose>11.0</PriceClose>
        <Volume>5000000L</Volume>
    </StockDailyRecords>
</Stock>
eohl
doc
# => #(Document:0x417f634 {
#      name = "document",
#      children = [
#        #(Element:0x417b570 {
#          name = "Stock",
#          children = [
#            #(Text "\n    "),
#            #(Element:0x4179a72 {
#              name = "Code",
#              children = [ #(Text "7052")]
#              }),
#            #(Text "\n    "),
#            #(Element:0x41786cc {
#              name = "Name",
#              children = [ #(Text "PADINI")]
#              }),
#            #(Text "\n    "),
#            #(Element:0x4175d00 {
#              name = "StockDailyRecords",
#              children = [
#                #(Text "\n        "),
#                #(Element:0x41752c4 {
#                  name = "PriceOpen",
#                  children = [ #(Text "1.2")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x417434c {
#                  name = "PriceChange",
#                  children = [ #(Text "1.1")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x4170fee {
#                  name = "PriceClose",
#                  children = [ #(Text "10.0")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x41702b0 {
#                  name = "Volume",
#                  children = [ #(Text "3000000L")]
#                  }),
#                #(Text "\n    ")]
#              }),
#            #(Text "\n    "),
#            #(Element:0x416a5b8 {
#              name = "StockDailyRecords",
#              children = [
#                #(Text "\n        "),
#                #(Element:0x4158ec6 {
#                  name = "PriceOpen",
#                  children = [ #(Text "1.3")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x414dddc {
#                  name = "PriceChange",
#                  children = [ #(Text "1.2")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x415e812 {
#                  name = "PriceClose",
#                  children = [ #(Text "11.0")]
#                  }),
#                #(Text "\n        "),
#                #(Element:0x40dfaa8 {
#                  name = "Volume",
#                  children = [ #(Text "5000000L")]
#                  }),
#                #(Text "\n    ")]
#              }),
#            #(Text "\n")]
#          })]
#      })
doc.class # => Nokogiri::XML::Document

doc.css("StockDailyRecords").count # => 2
doc.css("StockDailyRecords").class # => Nokogiri::XML::NodeSet
doc.css("StockDailyRecords").map(&:next)
# => [#(Text "\n    "), #(Text "\n")]
doc.css("StockDailyRecords").map(&:name)
# => ["StockDailyRecords", "StockDailyRecords"]
doc.css("StockDailyRecords").map(&:next_element)
# => [#(Element:0x416a5b8 {
#       name = "StockDailyRecords",
#       children = [
#         #(Text "\n        "),
#         #(Element:0x4158ec6 {
#           name = "PriceOpen",
#           children = [ #(Text "1.3")]
#           }),
#         #(Text "\n        "),
#         #(Element:0x414dddc {
#           name = "PriceChange",
#           children = [ #(Text "1.2")]
#           }),
#         #(Text "\n        "),
#         #(Element:0x415e812 {
#           name = "PriceClose",
#           children = [ #(Text "11.0")]
#           }),
#         #(Text "\n        "),
#         #(Element:0x40dfaa8 {
#           name = "Volume",
#           children = [ #(Text "5000000L")]
#           }),
#         #(Text "\n    ")]
#       }),
#     nil]

doc.at_css("StockDailyRecords").children.map{|el| el.text.strip unless
el.text? }.compact
# => ["1.2", "1.1", "10.0", "3000000L"]
doc.at_css("StockDailyRecords").children.map{|el| el.text.strip if
el.text.strip != "" }.compact
# => ["1.2", "1.1", "10.0", "3000000L"]
doc.at_css("StockDailyRecords").next_sibling # =>
#<Nokogiri::XML::Text:0x416a9fa "\n    ">
doc.at_css("StockDailyRecords").next_sibling.node_name # => "text"

Hash[doc.at_css("StockDailyRecords").children.map {|n|
[n.name,n.node_type]}]
# => {"text"=>3,
#     "PriceOpen"=>1,
#     "PriceChange"=>1,
#     "PriceClose"=>1,
#     "Volume"=>1}
Hash[doc.css("StockDailyRecords").map {|n| [n.name,n.node_type]}]
# => {"StockDailyRecords"=>1}
doc.at_css("StockDailyRecords").children.map {|n|
[n.parent.name,n.name]}
# => [["StockDailyRecords", "text"],
#     ["StockDailyRecords", "PriceOpen"],
#     ["StockDailyRecords", "text"],
#     ["StockDailyRecords", "PriceChange"],
#     ["StockDailyRecords", "text"],
#     ["StockDailyRecords", "PriceClose"],
#     ["StockDailyRecords", "text"],
#     ["StockDailyRecords", "Volume"],
#     ["StockDailyRecords", "text"]]
doc.at_css("StockDailyRecords").children.count
# => 9
doc.root.name # => "Stock"
doc.root.children.map(&:name)
# => ["text",
#     "Code",
#     "text",
#     "Name",
#     "text",
#     "StockDailyRecords",
#     "text",
#     "StockDailyRecords",
#     "text"]
doc.root.children.map{|n| n.name if n.elem? }.compact
# => ["Code", "Name", "StockDailyRecords", "StockDailyRecords"]
doc.root.children.map{|n| n.name if n.elem? && !n.children.empty?
}.compact
# => ["Code", "Name", "StockDailyRecords", "StockDailyRecords"]

#===================================================================================
# Day - IV :
# Methods wil be covered:
# #path,#previous,#previous_element,#pointer_id,#line,#xml?
#===================================================================================

doc = Nokogiri::XML(<<-eohl)
<Stock>
    <Code>7052</Code>
    <Name>PADINI</Name>
    <StockDailyRecords>
        <PriceOpen>1.2</PriceOpen>
        <PriceChange>1.1</PriceChange>
        <PriceClose>10.0</PriceClose>
        <Volume>3000000L</Volume>
    </StockDailyRecords>
    <StockDailyRecords>
        <PriceOpen>1.3</PriceOpen>
        <PriceChange>1.2</PriceChange>
        <PriceClose>11.0</PriceClose>
        <Volume>5000000L</Volume>
    </StockDailyRecords>
</Stock>
eohl

doc.at_css('StockDailyRecords').path
# => "/Stock/StockDailyRecords[1]"
doc.at_css('StockDailyRecords').pointer_id
# => 139602384
doc.at_css('StockDailyRecords').previous.previous
# => #(Element:0x40dd190 { name = "Name", children = [ #(Text "PADINI")]
})
doc.at_css('StockDailyRecords').previous_element
# => #(Element:0x40dd190 { name = "Name", children = [ #(Text "PADINI")]
})
doc.at_css('StockDailyRecords').children[1].path
# => "/Stock/StockDailyRecords[1]/PriceOpen"
doc.at_css('StockDailyRecords').previous_sibling.previous_sibling
# => #(Element:0x40dd190 { name = "Name", children = [ #(Text "PADINI")]
})
doc.at_css('StockDailyRecords').line
# => 4
doc.css('StockDailyRecords').map(&:line)
# => [4, 10]
doc.xml? # => true
#===================================================================================
# Day - V :
# Methods wil be covered:
# #replace,#unlink,#remove
#===================================================================================

doc = Nokogiri::HTML(<<-eohl)
<div>
    <dt>
        Test 1
    </dt>
    <dd>
    </dd>
    <dt>
        Test 2
    </dt>
    <dd>
    foo
    </dd>
</div>
eohl

doc.search('div').children.map(&:name)
# => ["text", "dt", "text", "dd", "text", "dt", "text", "dd", "text"]
doc.at('dt').unlink
doc.search('div').children.map(&:name)
# => ["text", "text", "dd", "text", "dt", "text", "dd", "text"]

node = Nokogiri::XML::Node.new('p',doc)
# => #(Element:0x4d5f3c8 { name = "p" })
doc.at('dt').replace node
doc.search('div').children.map(&:name)
# => ["text", "text", "dd", "text", "p", "text", "dd", "text"]

#===================================================================================
# Day - VI :
# Methods wil be covered:
# #matches?,#css_path,#swap
#===================================================================================

doc = Nokogiri::HTML(<<-eohl)
<div>
    <dt>
        Test 1
    </dt>
    <dd>
    </dd>
    <dt>
        Test 2
    </dt>
    <dd>
    foo
    </dd>
</div>
eohl


doc.search("dt,dd").map{|n| n.name unless n.to_str.strip.empty?
}.compact
# => ["dt", "dt", "dd"]

doc.search("dt,dd").map{|n| n.css_path }
# => ["html > body > div > dt:nth-of-type(1)",
#     "html > body > div > dt:nth-of-type(2)",
#     "html > body > div > dd:nth-of-type(1)",
#     "html > body > div > dd:nth-of-type(2)"]
doc.search("dt,dd").first.matches? "dt:nth-of-type(1)"
# => true

f = Nokogiri::XML.fragment( "<div class='section'><span
class='greeting'></span></div>" )

f.css( 'div' ).each do | node |
  node.swap( '<h1>hi</h1>' )
end

f
# => #(DocumentFragment:0x43aa42c {
#      name = "#document-fragment",
#      children = [
#        #(Element:0x43a3992 { name = "h1", children = [ #(Text "hi")]
})]
#      })

#===================================================================================
# Day - VII :
# Methods wil be covered:
# #traverse
#===================================================================================

doc = Nokogiri::HTML(<<-eofl)
<div id="international-map">
 <div id='a'>
    <a> link a1 </a>
    <a> link a2 </a>
    <a> link a3 </a>
  </div>
  <div id='b'>
       <a> link b1 </a>
       <a> link b2 </a>
  </div>
</div>
eofl

a = []
doc.at('div#a').traverse do |i|
    a << i.text.strip unless i.elem?
end
a.reject(&:empty?) # => ["link a1", "link a2", "link a3"]

doc.at('div#a').traverse do |i|
    p i.text unless i.elem?
end
# >> "\n    "
# >> " link a1 "
# >> "\n    "
# >> " link a2 "
# >> "\n    "
# >> " link a3 "
# >> "\n  "

#===================================================================================
# Day - VIII :
# Methods wil be covered:
# #traverse,#before,#after,#add_previous_sibling,#add_next_sibling
#===================================================================================

doc = Nokogiri::HTML(<<-eofl)
<div id="international-map">
 <div id='a'>
    <a> link a1 </a>
    <a> link a2 </a>
    <a> link a3 </a>
  </div>
  <div id='b'>
       <a> link b1 </a>
       <a> link b2 </a>
  </div>
</div>
eofl

doc.at('div#a').inner_html
# => "\n    <a> link a1 </a>\n    <a> link a2 </a>\n    <a> link a3
</a>\n  "
doc.at('div#a').inner_text
# => "\n     link a1 \n     link a2 \n     link a3 \n  "
doc.at('div#a').internal_subset
# => #(DTD:0x43efa5e { name = "html" })

doc = Nokogiri::HTML::Document.new
doc # => #<Nokogiri::HTML::Document:0x48d2e40 name="document"
children=[#<Nokogiri::XML::DTD:0x48d2c88 name="html">]>
pnode = Nokogiri::XML::Node.new("div",doc)
pnode # => #<Nokogiri::XML::Element:0x48d29a4 name="div">
cnode = pnode.add_child("<p> Welcome </p>")
pnode
# => #(Element:0x48d29a4 {
#      name = "div",
#      children = [
#        #(Element:0x48d26c0 {
#          name = "p",
#          children = [ #(Text " Welcome ")]
#          })]
#      })
#cnode.add_next_sibling("<p> Please come in! </p>")
cnode.class
# => Nokogiri::XML::NodeSet
cnode
# => [#<Nokogiri::XML::Element:0x48d26c0 name="p"
children=[#<Nokogiri::XML::Text:0x48858fc " Welcome ">]>]
cnode[0]
# => #(Element:0x48d26c0 { name = "p", children = [ #(Text " Welcome ")]
})
pnode << cnode[0].add_next_sibling("<p> Please come in! </p>")
pnode
# => #(Element:0x48d29a4 {
#      name = "div",
#      children = [
#        #(Element:0x48d26c0 {
#          name = "p",
#          children = [ #(Text " Welcome ")]
#          }),
#        #(Element:0x4873350 {
#          name = "p",
#          children = [ #(Text " Please come in! ")]
#          })]
#      })
pnode.children.count
# => 2
pnode.children[1].add_previous_sibling("<p> Good morning!!Dear Arjun
</p>")
pnode
# => #(Element:0x48d29a4 {
#      name = "div",
#      children = [
#        #(Element:0x48d26c0 {
#          name = "p",
#          children = [ #(Text " Welcome ")]
#          }),
#        #(Element:0x48700c4 {
#          name = "p",
#          children = [ #(Text " Good morning!!Dear Arjun ")]
#          }),
#        #(Element:0x4873350 {
#          name = "p",
#          children = [ #(Text " Please come in! ")]
#          })]
#      })
pnode.children.count
# => 3

pnode.fragment("<li> Foo </li> <li> bar >/li>")
# => #(DocumentFragment:0x48e73a4 {
#      name = "#document-fragment",
#      children = [
#        #(Element:0x48e72f0 { name = "li", children = [ #(Text " Foo
")] }),
#        #(Text " "),
#        #(Element:0x48e726e {
#          name = "li",
#          children = [ #(Text " bar >/li>")]
#          })]
#      })
pnode.class # => Nokogiri::XML::Element
pnode.child.after("<li> Foo </li> <li> bar >/li>")
# => #(Element:0x48d26c0 { name = "p", children = [ #(Text " Welcome ")]
})
pnode
# => #(Element:0x48d29a4 {
#      name = "div",
#      children = [
#        #(Element:0x48d26c0 {
#          name = "p",
#          children = [ #(Text " Welcome ")]
#          }),
#        #(Element:0x48db180 { name = "li", children = [ #(Text " Foo
")] }),
#        #(Text " "),
#        #(Element:0x48db086 {
#          name = "li",
#          children = [ #(Text " bar >/li>")]
#          }),
#        #(Element:0x48700c4 {
#          name = "p",
#          children = [ #(Text " Good morning!!Dear Arjun ")]
#          }),
#        #(Element:0x4873350 {
#          name = "p",
#          children = [ #(Text " Please come in! ")]
#          })]
#      })
pnode.child.before("<li> Foo </li> <li> bar >/li>")
# => #(Element:0x48d26c0 { name = "p", children = [ #(Text " Welcome ")]
})
pnode
# => #(Element:0x48d29a4 {
#      name = "div",
#      children = [
#        #(Element:0x48a8e2e { name = "li", children = [ #(Text " Foo
")] }),
#        #(Text " "),
#        #(Element:0x48a8c26 {
#          name = "li",
#          children = [ #(Text " bar >/li>")]
#          }),
#        #(Element:0x48d26c0 {
#          name = "p",
#          children = [ #(Text " Welcome ")]
#          }),
#        #(Element:0x48db180 { name = "li", children = [ #(Text " Foo
")] }),
#        #(Text " "),
#        #(Element:0x48db086 {
#          name = "li",
#          children = [ #(Text " bar >/li>")]
#          }),
#        #(Element:0x48700c4 {
#          name = "p",
#          children = [ #(Text " Good morning!!Dear Arjun ")]
#          }),
#        #(Element:0x4873350 {
#          name = "p",
#          children = [ #(Text " Please come in! ")]
#          })]
#      })
1
顶
5
踩
分享到：
| Scope- ruby中变量的作用范围
评论
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

    nokogiri-signatures:nokogiri 增强以支持 XML 数字签名 (xmldsig)

    Nokogiri::签名 nokogiri 增强功能以​​支持。 进行签名和验证签名的艰苦工作。 这个 gem 提供了一个 nokogiri 友好的界面，用于签署和验证 XML 文档...要签署Nokogiri::XML::Document ，您需要将元素添加到文档中所

    ruby,xml

    new_node = Nokogiri::XML::Node.new('new_element', doc) existing_node.add_child(new_node) # 修改节点文本 node.content = '新内容' ``` 4. **XML序列化**：将处理后的XML对象写回文件或转换为字符串。 ```...

    Ruby中使用Nokogiri包来操作XML格式数据的教程

    third_book = Nokogiri::XML::Node.new 'book', doc third_book.content = 'I am the third book' second_book.add_next_sibling third_book ``` 通过这种方式，Nokogiri提供了对XML文档的强大操作能力，包括查找、...

    pugixml读写XML示例

    `xml_document`代表整个XML文档，而`xml_node`表示文档中的一个节点，可以是元素、属性、文本等。 读取XML文件： 1. **初始化pugixml库**：在使用pugixml之前，需要包含头文件`#include &lt;pugixml.hpp&gt;`。 2. **加载...

    pugixml 一个很好用的XML类

    root.append_child("child1").append_child(pugi::node_pcdata).set_value("Text1"); if (!doc.save_file("test.xml")) { std::cout !" &lt;&lt; std::endl; return 1; } return 0; } ``` 这段代码首先创建了一个...

    ruby xml封装好的操作XML对象

    Nokogiri允许使用`LibXML`或`LibXML-Java`后端，它们通常比默认的`Nokogiri::XML::Reader`更快。 总之，`xml_parse.rb`文件可能是关于如何在Ruby中高效地封装和操作XML对象的示例代码。通过利用Nokogiri等库，我们...

    rspec-xsd:用于确保 XML 针对给定 XSD 进行验证的 Rspec 匹配器

    RSpec::XSD概述RSpec 匹配器，用于确保针对给定 XSD 验证 XML安装将此行添加到应用程序的 Gemfile 中： group :test do ... 您可以通过传入 Nokogiri::XML::Schema 对象来检查 XML 是否针对给定的架构进行验证 expect

    rlexception: invalid roslaunch xml syntax: no element found: lin

    ### 解决方法 #### 1. 检查文件内容 首先需要确保`.launch`文件不是空文件。可以通过任何文本编辑器打开文件并检查其内容是否存在。 #### 2. 验证 XML 结构 - **确保文件以 `&lt;xml version="1.0"&gt;` 开头**：这是XML...

    ruby操作xml

    - 解析XML：使用`Nokogiri::XML`方法打开一个XML文件，然后可以通过`search`或`at`方法使用XPath或CSS查询文档。 - 修改XML：可以创建新的元素，使用`add_child`方法添加到树中，或者用`content=`设置元素内容。 ...

    nokogiri_bang_finders:将 XML 查找器添加到 Nokogiri，如果未找到任何内容则引发

    这颗宝石说“Nokogiri，如果你找不到我想要的 XML，请大喊大叫。” 例如： doc = Nokogiri :: XML ( "&lt;root&gt;&lt;aliens&gt;&lt;alien&gt;&lt;name&gt;Alf&lt;/name&gt;&lt;/alien&gt;&lt;/aliens&gt;&lt;/root&gt;" ) doc . at ( 'alien' ) . content # =&gt; ...

    Ruby的XML格式数据解析库Nokogiri的使用进阶

    xml_doc = Nokogiri::XML(&lt;root&gt;&lt;aliens&gt;&lt;alien&gt;&lt;name&gt;Alf&lt;/name&gt;&lt;/alien&gt;&lt;/aliens&gt;&lt;/root&gt;) 这里的html_doc和xml_doc就是nokogiri文件 2.也可以通过文件句柄获取nokogiri对象: f = File.open(blossom.xml) do

    XML的一些简单举例

    7. **XML解析**：解析XML文档有两种主要方法：DOM（Document Object Model）和SAX（Simple API for XML）。DOM一次性加载整个文档到内存，适合小规模文档；SAX是事件驱动，逐行读取，适用于大文件。 8. **XPath**：...

    node-xml2json:Node.js的XML2JSON

    ##xml2json Node.js Library基于Node.js版的xml to json使用方法：安装：$ npm install -g node-xml2json使用：var xml2json = require("node-xml2json");var xml = "&lt;xml&gt;hello&lt;/xml&gt;";var json = xml2...

    nokogiri：Nokogiri（锯）是一种Rubygem，提供HTML，XML，SAX和Reader解析器，并支持XPath和CSS选择器

    指导原则Nokogiri尝试遵循的一些指导原则： 通过将所有文档默认情况下视为不信任来确保默认情况下的安全在基础解析器之上成为合理的薄层，并且不要尝试修复解析器之间的行为差​​异功能概述用于XML和HTML4的DOM解析...

    用ruby读excel文件生成xml文件

    xml = Nokogiri::XML::Builder.new do |xml| xml.root { |root| data.each do |row| root.row do |row_node| row.each { |key, value| row_node.send(key.to_s.downcase, value) } end end } end ``` 最后，...

    XML:Raku的面向对象的XML库

    它支持每种主要的XML节点（XML :: Node）： 文件（XML :: Document） 元素（XML :: Element） 文字（XML :: Text） 评论（XML :: Comment） PI（XML :: PI） CDATA（XML :: CDATA） 您可以通过在字符串上下文中使用...

Magicbox
Global site tag (gtag.js) - Google Analytics