T-integer Ttype: integer; Twidth: =4 Treal Ttype: real; Twidth: =8 T→ arraylnum]ofT1 T type: array(num. val,T1 type) T width -num. val *T. width j T→→个 T type: =pointer(T, type); T width: =4)T→integer { T.type:=integer; T.width:=4 } T→real { T.type:=real; T.width:=8 } T→array[num] of T1 { T.type:=array(num.val,T1 .type); T.width:=num.val*T1 .width } T→↑T1 { T.type:=pointer(T1 .type); T.width:=4 }