XPath实例教程九、string-length函数

string-length函数返回字符串的字符数,你应该用&lt;替代<, 用&gt;代替>

//*[string-length(name()) = 3]

选择名字长度为3的元素

     <AAA>
          <Q/>
          <SSSS/>
          <BB/>
          <CCC/>
          <DDDDDDDD/>
          <EEEE/>
     </AAA>

 

//*[string-length(name()) < 3]

选择名字长度小于3的元素

     <AAA>
          <Q/>
          <SSSS/>
          <BB/>
          <CCC/>
          <DDDDDDDD/>
          <EEEE/>
     </AAA>

 

//*[string-length(name()) > 3]

选择名字长度大于3的元素

     <AAA>
          <Q/>
          <SSSS/>
          <BB/>
          <CCC/>
          <DDDDDDDD/>
          <EEEE/>
     </AAA>