| //@id |
|---|
| 选择所有的id属性 |
|
<AAA> <BBB id = "b1"/> <BBB id = "b2"/> <BBB name = "bbb"/> <BBB/> </AAA> |
| //BBB[@id] |
|---|
| 选择有id属性的BBB元素 |
|
<AAA> <BBB id = "b1"/> <BBB id = "b2"/> <BBB name = "bbb"/> <BBB/> </AAA> |
| //BBB[@name] |
|---|
| 选择有name属性的BBB元素 |
|
<AAA> <BBB id = "b1"/> <BBB id = "b2"/> <BBB name = "bbb"/> <BBB/> </AAA> |
| //BBB[@*] |
|---|
| 选择有任意属性的BBB元素 |
|
<AAA> <BBB id = "b1"/> <BBB id = "b2"/> <BBB name = "bbb"/> <BBB/> </AAA> |
| //BBB[not(@*)] |
|---|
| 选择没有属性的BBB元素 |
|
<AAA> <BBB id = "b1"/> <BBB id = "b2"/> <BBB name = "bbb"/> <BBB/> </AAA> |