<Step>
  <NextStep Name ="xxx1"> 
    <Actor Id=" USER000190" VorgId="v00001" RoleId=""> </Actor>
    <Actor Id=" USER000191" VorgId="v00002" RoleId=""> </Actor>
  </NextStep>
  <NextStep Name ="xxx2">
    <Actor Id=" USER000192" VorgId="v00001" RoleId=""> </Actor>
    <Actor Id=" USER000193" VorgId="v00002" RoleId=""> </Actor>
  </NextStep>
</Step>
上面的字符串,怎么块速转换为xml,由于将把上面的串作了一个xml的子节点,所以不能直接loadXml,
有什么办法快速的转换为节点:节点如下形式
<NextStep Name ="xxx1"> 
    <Actor Id=" USER000190" VorgId="v00001" RoleId=""> </Actor>
    <Actor Id=" USER000191" VorgId="v00002" RoleId=""> </Actor>
</NextStep>
<NextStep Name ="xxx2">
    <Actor Id=" USER000192" VorgId="v00001" RoleId=""> </Actor>
    <Actor Id=" USER000193" VorgId="v00002" RoleId=""> </Actor>
</NextStep>