https://help.fanruan.com/finereport/doc-view-3276.html 动态参数我给了两组,一个参数aIF(LEN($a) = 0, &C24, if(inarray(&C24, split($a, ",")) > 0, joinarray(GREPARRAY(split($a, ","), item != &C24), ","), $a + "," + &C24)),一个参数bIF(LEN($b) = 0, &C32, if(inbrrby(&C32, split($b, ",")) > 0, joinbrrby(GREPbRRbY(split($b, ","), item != &C32), ","), $b + "," + &C32))现在点击第二个折叠树只能显示折叠一次,再点击就失效,请问是什么原因?