XSD 混合内容的复合类型

A mixed complex type element can contain attributes, elements, and text.
混合内容的复合类型元素（XSD Complex Types Element With Mixed Content ）可以含有属性，元素，和文本。

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Complex Types with Mixed Content
混合内容的复合类型

An XML element, "letter", that contains both text and other elements:
一个XML元素，"letter",既含有文本又含有其他元素：

<letter>Dear Mr.<name>John Smith</name>.Your order <orderid>1032</orderid>will be shipped on <shipdate>2001-07-13</shipdate>.</letter>

The following schema declares the "letter" element:
下面的XML公式声明了"letter"元素：

<xs:element name="letter">  <xs:complexType mixed="true">    <xs:sequence>      <xs:element name="name" type="xs:string"/>      <xs:element name="orderid" type="xs:positiveInteger"/>      <xs:element name="shipdate" type="xs:date"/>    </xs:sequence>  </xs:complexType></xs:element>

Note: To enable character data to appear between the child-elements of "letter", the mixed attribute must be set to "true". The <xs:sequence> tag means that the elements defined (name, orderid and shipdate) must appear in that order inside a "letter" element.
注意：为了使字符数据能出现在"letter"子元件之间，mixed属性必须设置为"true"。<xs:sequence>标签指出了已定义的元素(name, orderid 和shipdate)在"letter"元素里必须以指定的顺序出现

We could also give the complexType element a name, and let the "letter" element have a type attribute that refers to the name of the complexType (if you use this method, several elements can refer to the same complex type):
我们可以给这个complexType元素一个名称，并且让"letter"元素有一个引用了complexType的名称的种类属性（如果你用了这个方法，几个元素可以同时使用相同的复合类型）：

<xs:element name="letter" type="lettertype"/>

<xs:complexType name="lettertype" mixed="true">  <xs:sequence>    <xs:element name="name" type="xs:string"/>    <xs:element name="orderid" type="xs:positiveInteger"/>    <xs:element name="shipdate" type="xs:date"/>  </xs:sequence></xs:complexType>