render 方法

render(:text => string) 输出字符串：
render(:text => cookies[:test_cookies].to_s)
render(:text => "字符串")

render(:action => action_name)调用action()方法：
render(:action => :index)

render(:template => template_name)显示模板：
render(:template => "test/index")

render(:file => path)显示指定文件：
render(:file => "D:/ruby/projects/test/app/views/test/index.rhtml")
render(:file => "test/index",:use_full_path => true)

render(:nothing => true)返回空值：
render(:nothing => true)

动态生成模板并显示数据：
render  :inline => "<!---->", :locals => { :word => "World"},:type => "rhtml"

render(:partial => path)调用局部模板：
render(:partial => "partial/title", :object => @first_item)