Xpath使用实例简单粗暴.doc

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1、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                                                                                                        在XLab中打开实例 

2、 树视图(JPG) /AAA/CCC选择AAA的所有CCC子元素     

3、>                                                                                                   在XLab中打开实例 

4、 树视图(JPG) /AAA/DDD/BBB选择AAA的子元素DDD的所有子元素                                                 

5、B/>                                                       在XLab中打开实例 

6、 树视图(JPG)如果路径以双斜线//开头,则表示选择文档中所有满足双斜线//之后规则的元素(无论层级关系) //BBB选择所有BBB元素                                                                            

7、DDD>                                                                                                      在XLab中打开实例 

8、 树视图(JPG) //DDD/BBB选择所有父元素是DDD的BBB元素                                                          

9、                                                                                                                        在XLab中打开实例 

10、 树视图(JPG)星号*表示选择所有由星号之前的路径所定位的元素 /AAA/CCC/DDD/*选择所有路径依附于/AAA/CCC/DDD的元素                

11、>                                                                                                                                                                                                                        

12、                                                                                                                                                                                 在XLab中打开实例 

13、 树视图(JPG) /*/*/*/BBB选择

14、所有的有3个祖先元素的BBB元素