非空

• Is set to a non - null value when the
  属性设置为非空值，则
• With non - null credentials in the current application domain
  策略影响当前应用程序域中所有含有非空凭据的
• Containing two rows whose only non - null columns will be the primary key
  包含两行，它们惟一的非空列是主键
• A non - empty line is anything that
  非空行是以非空格字符
• Use any non - null value for user id and password , and click the
  使用任意（非空）值作为用户id和密码，并单击
• Non - empty values are unsupported
  ：非空值不受支持。
• Move to the farthest nonblank cell in the direction of the arrow
  按箭头的方向移动到最远的一个非空单元格。
• This setting has no effect on copy or cut when a line is not blank
  此设置对行非空时的复制或剪切操作无效。
• Is nonnull will always return the same owner id as the parent
  为非空值）将始终返回与父对象相同的所有者id 。
• Use this method to determine whether a query returns a nonempty result
  此方法用于确定查询是否返回非空结果。