_______ the difficulty that he has supporting his big family, he still makes every effort to realize his dream, which I believe is __________ his reach.
【简答题】假定定义了一个记录类型,名为Rt,同时建立了一个名为Sp.txt的文件,然后编写如下的程序段: Dim Rv As Rt r1=Len(Rv) Open'Sp.txt' For Random As 1 x=LOF(1) n=x/r1 执行上面的程序段后,变量n中存放的是文件【 】中所存放的是【 】记录类型的记录数。