soap 数组类型的参数如何设定

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Body>
<m:sendSMS xmlns:m="http://realization.webservice.uc.fin.huawei.com" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<uc xsi:type="xsd:string">test</uc>
<pw xsi:type="xsd:string">123456</pw>
<rand xsi:type="xsd:string">123</rand>

<callee xsi:type="SOAP-ENC:Array" />

<isreturn xsi:type="xsd:string">1234</isreturn>
<cont xsi:type="xsd:string">13345</cont>
<msgid xsi:type="xsd:int">0</msgid>
<connID xsi:type="xsd:string">123</connID>
</m:sendSMS>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>


<callee xsi:type="SOAP-ENC:Array" />参数如何表达

<wsdl:message name="sendSMSRequest">
  <wsdl:part name="uc" type="xsd:string" /> 
  <wsdl:part name="pw" type="xsd:string" /> 
  <wsdl:part name="rand" type="xsd:string" /> 
  <wsdl:part name="callee" type="impl:ArrayOf_xsd_string" /> 
  <wsdl:part name="isreturn" type="xsd:string" /> 
  <wsdl:part name="cont" type="xsd:string" /> 
  <wsdl:part name="msgid" type="xsd:int" /> 
  <wsdl:part name="connID" type="xsd:string" /> 
  </wsdl:message>