应于 POINTER TO 要么 REFERENCE [...] Fb_A: POINTER TO Fb_A; 要么 ptrFb_B: REFERENCE TO Fb_B; )。这就
: association POINTER TO 要么 REFERENCE TO 实现
( VAR ) 协会 ( POINTER TO ) 实现
( POINTER TO ) : 协会 ( REFERENCE TO ) : 实现
Object_1 : POINTER TO Class_2; 点击 [...] Class_2 : POINTER TO Class
Base : POINTER TO Base [...] Base : POINTER TO Base [...] _2 : POINTER TO Class_2; END
POU_2: POINTER TO POU_2; Var