scala中xml修改元素详解

默认情况下，scala中的xml表达式是不可改变的，如果要修改xml元素的话，必须拷贝一份再修改 val books=<books><book>辟邪剑谱</book></books> 添加一个 子元素 val booksCopy=books.copy(child=books.child ++ <book>独孤九剑</book>) val book=<book id="1">book1</book> import scala.xml._ //修改一个属性 val bookCopy=book%Attribute(null,"id","2",Null) val bookCopy=book % Atrribute(null,"id","2",Attribute(null,"price","10.0",Null))