假定结构体类型cont_info的声明如下: struct cont_info { char id[8]; char name [16]; unsigned post; char address[100]; char phone[20]; }; 若结构体变量x初始化定义为struct cont_info x={“00000010”, “ZhangS”, 210022, “273 long street, High Building #3015”, “12345678”},x的首地址在EDX中,则“unsigned xpost=x.post;”对应汇编指令为(__)。