如何从go中的XML元素（结构标签）获取文本？

The following XML has an exemple of an element that has nested fields (title, author etc) and a text (Blah Blah...):

    <?xml version="1.0" encoding="UTF-8"?>
    <book category="cooking">
      <title lang="en">Everyday Italian</title>
      <author>Giada De Laurentiis</author>
      <year>2005</year>
      <price>30.00</price>
      Blah Blah Blah Bleh Blah
    </book>

I've coded this structure to decode this XML but I don't know which structure tag I should use in this case. I search in the docs but i have found nothing.

    type Book struct{
       t string `xml:"book>title"`
       p string `xml:"book>price"`
       y string `xml:"book>year"`
       a string `xml:"book>author"`
       blah string ???????
    }

Per the documentation:

If the XML element contains character data, that data is accumulated in the first struct field that has tag ",chardata". The struct field may have type []byte or string. If there is no such field, the character data is discarded.

So, you can decode it with a struct as such:

type Book struct {
    Title   string   `xml:"title"`
    Price   string   `xml:"price"`
    Year    string   `xml:"year"`
    Author  string   `xml:"author"`
    Body    string   `xml:",chardata"`
}

(Note that fields you're unmarshaling into must be exported, i.e., must start with an uppercase letter, or they cannot be unmarshaled into.)

You can see an example here: https://play.golang.org/p/OlwSqnHsT7