e.Location = new System.Drawing.Point ( 184 , 108 ) ;
t_booktitle.Size = new System.Drawing.Size ( 176 , 20 ) ;

t_bookauthor.Location = new System.Drawing.Point ( 184 , 160 ) ;
t_bookauthor.Size = new System.Drawing.Size ( 128 , 20 ) ;

t_bookprice.Location = new System.Drawing.Point ( 184 , 212 ) ;
t_bookprice.Size = new System.Drawing.Size ( 80 , 20 ) ;

t_bookstock.Location = new System.Drawing.Point ( 184 , 264 ) ;
t_bookstock.Size = new System.Drawing.Size ( 80 , 20 ) ;
//以下是设定在程序中使用到的Label属性
l_bookid.Location = new System.Drawing.Point ( 24 , 56 ) ;
l_bookid.Text = "序 号：" ;
l_bookid.Size = new System.Drawing.Size ( 142 , 20 ) ;
l_bookid.Font = new System.Drawing.Font ( "宋体" , 12f ) ;
l_bookid.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ;
l_booktitle.Location = new System.Drawing.Point ( 24 , 108 ) ;
l_booktitle.Text = "书 名：" ;
l_booktitle.Size = new System.Drawing.Size ( 142 , 20 ) ;
l_booktitle.Font = new System.Drawing.Font ( "宋体" , 12f ) ;
l_booktitle.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ;
l_bookauthor.Location = new System.Drawing.Point ( 24 , 160 ) ;
l_bookauthor.Text = "作 者：";
l_bookauthor.Size = new System.Drawing.Size ( 142 , 20 ) ;
l_bookauthor.Font = new System.Drawing.Font ( "宋体" , 12f ) ;
l_bookauthor.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ;
l_bookprice.Location = new System.Drawing.Point ( 24 , 212 ) ;
l_bookprice.Text = "价 格：" ;
l_bookprice.Size = new System.Drawing.Size ( 142 , 20 ) ;
l_bookprice.Font = new System.Drawing.Font ( "宋体" , 12f ) ;
l_bookprice.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ;

l_bookstock.Location = new System.Drawing.Point ( 24 , 264 ) ;
l_bookstock.Text = "书 架 号：" ;
l_bookstock.Size = new System.Drawing.Size ( 142 , 20 ) ;
l_bookstock.Font = new System.Drawing.Font ( "宋体" , 12f ) ;
l_bookstock.TextAlign = System.Drawing.ContentAlignment.MiddleCenter ;

//以下设定程序中用到的功能按钮的属性及对应的事件
delete.Location = new System.Drawing.Point ( 104 , 352 ) ;
delete.ForeColor = System.Drawing.Color.Black ;
delete.Size = new System.Drawing.Size ( 80 , 24 ) ;
delete.Font = new System.Drawing.Font ( "宋体" , 9f ) ;
delete.Text = "删除记录" ;
delete.Click += new System.EventHandler ( GoDelete ) ;

update.Location = new System.Drawing.Point ( 204 , 352 ) ;
update.ForeColor = System.Drawing.Color.Black ;
update.Size = new System.Drawing.Size ( 80 , 24 ) ;
update.Font = new System.Drawing.Font ( "宋体" , 9f ) ;
update.Text = "修改记录" ;
update.Click += new System.EventHandler ( GoUpdate ) ;

firstrec.Location = new System.Drawing.Point ( 64 , 312 ) ;
firstrec.ForeColor = System.Drawing.Color.Black ;
firstrec.Size = new System.Drawing.Size ( 40 , 24 ) ;
firstrec.Font = new System.Drawing.Font ( "宋体" , 9f ) ;
firstrec.Text = "首记录" ;
firstrec.Click += new

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