我想把某个表的的数据:
比如:
字段1   字段2   字段3
A1       P01     2.33
A2       P02     2.25
A3       P01     2.12
A4       P03     2.28
显示成这样:
         P01     P02   P03 
A1       2.33
A2               2.25     
A3       2.12    
A4                     2.28