Could everyone help me? Thank you very much.
<domain type='kvm'>
<name>test</name> //\u865a\u62df\u673a\u540d\u79f0
<memory>1048576</memory> //\u6700\u5927\u5185\u5b58\uff0c\u5355\u4f4dk
<currentMemory>1048576</currentMemory> //\u53ef\u7528\u5185\u5b58\uff0c\u5355\u4f4dk
<vcpu>8</vcpu> //\u865a\u62dfcpu\u4e2a\u6570
<os>
<type arch='x86_64' machine='pc'>hvm</type>
<boot dev='cdrom'/> //\u5149\u76d8\u542f\u52a8
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/var/lib/libvirt/images/winxpsp3-regression.qcow2'/> //\u76ee\u7684\u955c\u50cf\u8def\u5f84
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='cdrom'>
<source file='/var/lib/libvirt/images/ubuntu.iso'/> //\u5149\u76d8\u955c\u50cf\u8def\u5f84
<target dev='hdb' bus='ide'/>
</disk>
<interface type='bridge'> //\u865a\u62df\u673a\u7f51\u7edc\u8fde\u63a5\u65b9\u5f0f
<source bridge='kvmbr0'/> //\u5f53\u524d\u4e3b\u673a\u7f51\u6865\u7684\u540d\u79f0
<mac address="00:16:3e:5d:aa:a8"/> //\u4e3a\u865a\u62df\u673a\u5206\u914dmac\u5730\u5740\uff0c\u52a1\u5fc5\u552f\u4e00\uff0c\u5426\u5219dhcp\u83b7\u5f97\u540c\u6837ip,\u5f15\u8d77\u51b2\u7a81
</interface>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes' listen = '0.0.0.0' keymap='en-us'/>//vnc\u65b9\u5f0f\u767b\u5f55\uff0c\u7aef\u53e3\u53f7\u81ea\u52a8\u5206\u914d\uff0c\u81ea\u52a8\u52a01\uff0c\u53ef\u4ee5\u901a\u8fc7virsh vncdisplay\u6765\u67e5\u8be2
</devices>
</domain>