目录
link_to与html的<a…a/>元素是对应的。
link_to支持传统的controller/action/id路由风格，同时也支持新的RESTful路由风格。
句法：
link_to(body, url, html_options = {})
# url is a String; you can use URL helpers like
# posts_path
link_to(body, url_options = {}, html_options = {})
# url_options, except :method, is passed to url_for
link_to(options = {}, html_options = {}) do
# name
end
link_to(url, html_options = {}) do
# name
end示例1：
#传统风格
link_to "Profile", controller: "profiles", action: "show", id: @profile
# => <a href="/profiles/show/1">Profile</a>
#RESTful风格
link_to "Profile", profile_path(@profile)
# => <a href="/profiles/1">Profile</a>
#RESTful风格的简写
link_to "Profile", @profile
# => <a href="/profiles/1">Profile</a>示例2：
#传统风格
link_to "Profiles", controller: "profiles"
# => <a href="/profiles">Profiles</a>
#RESTful风格
link_to "Profiles", profiles_path
# => <a href="/profiles">Profiles</a>示例3(method属性)：
link_to("Destroy", "http://www.example.com", method: :delete)
# => <a href='http://www.example.com' rel="nofollow" data-method="delete">Destroy</a>示例4(data属性)：
link_to "Visit Other Site", "http://www.rubyonrails.org/", data: { confirm: "Are you sure?" }
# => <a href="http://www.rubyonrails.org/" data-confirm="Are you sure?">Visit Other Site</a>原创文章，作者：huoxiaoqiang，如若转载，请注明出处：https://www.huoxiaoqiang.com/experience/rubye/2021.html
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