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基本的XPath语法类似于在一个文件系统中定位文件,如果路径以斜线 / 开始, 那么该路径就表示到一个元素的绝对路径
 
/AAA
选择根元素AAA

     <AAA>
          <BBB/>
          <CCC/>
          <BBB/>
          <BBB/>
          <DDD>
               <BBB/>
          </DDD>
          <CCC/>
     </AAA>
在XLab中打开实例 | 树视图 (JPG)
 
/AAA/CCC
选择AAA的所有CCC子元素

     <AAA>
          <BBB/>
          <CCC/>
          <BBB/>
          <BBB/>
          <DDD>
               <BBB/>
          </DDD>
          <CCC/>
     </AAA>
在XLab中打开实例 | 树视图 (JPG)
 
/AAA/DDD/BBB
选择AAA的子元素DDD的所有子元素

     <AAA>
          <BBB/>
          <CCC/>
          <BBB/>
          <BBB/>
          <DDD>
               <BBB/>
          </DDD>
          <CCC/>
     </AAA>
在XLab中打开实例 | 树视图 (JPG)



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