请问各位大侠一个关于xml的问题

文件1.xml <rs:data>
<z:row cst_style="5181104" cst_shop="CAAW01" cst_shop_cn="总仓" cst_color_cn="黑色" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="33"/>
<z:row cst_style="5181104" cst_shop="CAG008" cst_shop_cn="G中山自营" cst_color_cn="黑色" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="8"/>
<z:row cst_style="5181104" cst_shop="CAG011" cst_shop_cn="G河源龙川" cst_color_cn="黑色" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="22"/>
cst_csaqty_avg="0" cst_ivonhd="4"/>
<z:row cst_style="5181104" cst_shop="CAAW01" cst_shop_cn="总仓" cst_color_cn="黑色" cst_size_cn="M" cst_csaqty_avg="0" cst_ivonhd="121"/>
<z:row cst_style="5181104" cst_shop="CAG005" cst_shop_cn="G南头自营" cst_color_cn="黑色" cst_size_cn="M" cst_csaqty_avg="0" cst_ivonhd="24"/>
<z:row cst_style="5181104" cst_shop="CAG008" cst_shop_cn="G中山自营" cst_color_cn="黑色" cst_size_cn="M" cst_csaqty_avg="0" cst_ivonhd="64"/>

<z:row cst_style="5181105" cst_shop="CAAW01" cst_shop_cn="总仓" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="29"/>
<z:row cst_style="5181105" cst_shop="CAAW02" cst_shop_cn="公司次品仓" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="1"/>
<z:row cst_style="5181105" cst_shop="CAG003" cst_shop_cn="G西乡自营" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="3"/>
<z:row cst_style="5181105" cst_shop="CAG005" cst_shop_cn="G南头自营" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="16"/>

<z:row cst_style="5181401" cst_shop="CAAW01" cst_shop_cn="总仓" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="4"/>
<z:row cst_style="5181401" cst_shop="CAAW02" cst_shop_cn="公司次品仓" cst_color_cn="米白" cst_size_cn="S" cst_csaqty_avg="0" cst_ivonhd="2"/></rs:data>如果用asp，我怎么搜索出1.xml中的“cst_shop_cn”所有的值？
和看一共有多少个节点？请各位大哥指点一下啊。