勤奋的二牛

摘要： 新建表 USE [DataBase] GO IF EXISTS (SELECT * FROM sys.all_objects WHERE object_id = OBJECT_ID(N'[dbo].[table]') AND type IN ('U')) DROP TABLE [dbo].[tabl 阅读全文

摘要： WPFTextBox控件显示水印效果 <TextBox x:Name="TbxInput" Grid.Row="1" Width="320" Height="25" Margin="0" VerticalAlignment="Center" VerticalContentAlignment="Cen 阅读全文