in
in
The in
attribute identifies input for the given filter primitive.
The value can be either one of the six keywords defined below, or a string which matches a previous result
attribute value within the same <filter>
element. If no value is provided and this is the first filter primitive, then this filter primitive will use SourceGraphic
as its input. If no value is provided and this is a subsequent filter primitive, then this filter primitive will use the result from the previous filter primitive as its input.
If the value for 登录查看完整内容