true value rule

To have the rule return the value of the effect, the associated condition must return True.

为了让规则返回effect的值，关联条件必须返回True。

Now add a count to the element and set the value to 2. The rule is defined that counts the active selected elements and returns true if two elements are selected.

现在向元素中添加计数并把值设置为2。

If you don't want the active rule to be reevaluated, you should include the rule's optional no-loop attribute and give it a value of true.

如果不希望这种情况发生，则应该包括rule的可选no - loop属性并将其赋值为true。