图书管理系统 vfp

go top thisform.command1.enabled=.f. thisform.command4.enabled=.t. thisform.command3.enabled=.t. thisform.command2.enabled=.f. thisform.dy thisform.refresh “上一条”按钮的代码如下： skip -1 thisform.command3.enabled=.t. thisform.command5.enabled=.t. if bof( ) messagebox("已经到第一个!") thisform.command2.enabled=.f. thisform.command5.enabled=.f. else thisform.dy endif thisform.refresh “下一条”按钮的代码如下： skip thisform.command5.enabled=.t. if eof( ) messagebox("已经到最后一条!") thisform.command3.enabled=.f. thisform.command5.enabled=.f. thisform.command2.enabled=.t. else thisform.command2.enabled=.t. endif thisform.dy thisform.refresh “最后一条”按钮的代码如下： go bottom thisform.command1.enabled=.t. thisform.command4.enabled=.f. thisform.command3.enabled=.f. thisform.command2.enabled=.t. thisform.dy thisform.refresh “修改”按钮的代码如下： go recno( ) thisform.txt姓名.readonly=.f. thisform.txt邮政编码.readonly=.f. thisform.txt性别.readonly=.f. thisform.txt手机.readonly=.f. thisform.txt小灵通.readonly=.f. thisform.txt住宅电话.readonly=.f. thisform.txtqq.readonly=.f. thisform.txte_mail.readonly=.f. thisform.txt办公电话.readonly=.f. thisform.txt家庭地址.readonly=.f. thisform.txt备注.readonly=.f. thisform.command6.enabled=.t.