Access宏控制检验口令的使用
在这个实例中将创建一个将包含条件的宏组,用来实现对口令的检验,如果口令正确,就先关闭这个身份核对窗口,再打开另一个窗体;如果口令不正确,将出现信息框要求重新输入口令。 建立一个窗体,添加文本框,命名为管理员口令,用来接收用户输入的口令。再建
在这个实例中将创建一个将包含条件的宏组,用来实现对口令的检验,如果口令正确,就先关闭这个身份核对窗口,再打开另一个窗体;如果口令不正确,将出现信息框要求重新输入口令。
建立一个窗体,添加文本框,命名为“管理员口令”,用来接收用户输入的口令。再建立一个确定按钮和一个取消按钮。
为按钮建立一个宏组,宏的设计视图如上图。
“条件”栏内的省略号(…),表示条件为真时可以连续第执行这些操作。
这是窗体运行的效果。
当输入的口令不正确时,单击确定按钮将出现一个“口令不正确”的消息框。
在这个例子中,管理员口令被定义为“ system ”,这在实际的应用中是不可行的,因为口令会因为需要而随时更改。为了实现这样的功能,你可以先建一个用户表,,里面保存了用户的口令,在宏中用用户输入的口令和用户表中的口令比较。如果要更改口令,更改表的数据就行了。

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