条件处理属性

Conditional Processing Attributes

中文

W3C Reference: http://www.w3.org/TR/SVG11/intro.html#TermConditionalProcessingAttribute

条件处理属性用于控制是否处理出现该属性的元素。大多数元素（但不是全部）可能都指定了条件处理属性。

英文

W3C Reference: http://www.w3.org/TR/SVG11/intro.html#TermConditionalProcessingAttribute

A conditional processing attribute is one that controls whether or not the element on which it appears is processed. Most elements, but not all, may have conditional processing attributes specified on them.

W3C 直达链接

W3C Direct Links

• requiredExtensions

• requiredFeatures

• systemLanguage