XPath

ina cikin kashi na XPath tukwumi, ina iya kuma hana kaiyawa, kuma tukwumi na logical da kuma burin burin.

XPath

duba shafin kuma farko na mu'amari da za a yi amfani da shi a ina cikin kashi na XPath tukwumi:

mu'amari ba'a shafi haya
| kawu kaiyawa biyu //book | //cd haya kaiyawa dake da kuma book da cd
+ kawu 6 + 4 10
- kawu 6 - 4 2
* kawu 6 * 4 24
div kika 8 div 4 2
= kaiyawa price=9.80

如果 price 是 9.80,则返回 true。

ifi price 9.90, hana false.

!= kaiyawa price!=9.80

ifi price 9.90, hana true.

ifi price 9.80, hana false.

< kiciyawa price<9.80

ifi price 9.00, hana true.

ifi price 9.90, hana false.

<= kiciyawa ko kaiyawa price<=9.80

ifi price 9.00, hana true.

ifi price 9.90, hana false.

> kaiyawa price>9.80

ifi price 9.90, hana true.

ifi price 9.80, hana false.

>= kaiyawa ko kaiyawa price>=9.80

ifi price 9.90, hana true.

ifi price 9.70, hana false.

tana tana price=9.80 tana 9.70

如果 price 是 9.80,则返回 true。

如果 price 是 9.50,则返回 false。

and price>9.00 and price<9.90

如果 price 是 9.80,则返回 true。

如果 price 是 8.50,则返回 false。

mod 计算除法的余数 5 mod 2 1