xslt中取xml节点的问题

例：  
<product>  
     <user>  
           <name></name>  
             <sex></sex>  
             <job>  
                     <jobname>软件工程师</job>  
                     <jobtype>1</jobtype>  
             </job>  
             <job>  
                       <jobname>市场人员</jobname>  
                       <jobtype>2</jobtype>  
               ..................这下面还有好几个job节点  
             </job>  
     </user>  
</product>  
 
我怎么用xpath语句取到user节点下面有几个job子节点？在xslt中写的xpath语句，用c#提供的语法肯定可以。