求问,数据集中,在${if()}中,如何正确放置引用$getuserdepartments(1),以及在${if()}中嵌套使用$if()的正确写法是怎么样的? ${if(条件,"select * from A where clunm=$getuserdepartments(1)","select * from B where 1=1$if(条件),“and clunm=%getuserdepartments(1)”,"and clumn2= xxx"")}大概结构是这个样子  | 
          
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