using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Data.SqlClient;
using?System.Data;

namespace?WindowsFormsApplication1
{
????class?DBHelper
????{
????????//數(shù)據(jù)庫(kù)鏈接字符串
????????public?static?string?ConnString?=?“server=.;database=Storage?SY;uid=sa;pwd=123456;“;


????????//數(shù)據(jù)庫(kù)鏈接對(duì)象
????????private?static?SqlConnection?Conn?=?null;

????????//初始化數(shù)據(jù)庫(kù)鏈接
????????private?static?void?InitConnection（）
????????{
????????????if?（Conn?==?null）
????????????????Conn?=?new?SqlConnection（ConnString）;
????????????if?（Conn.State?==?ConnectionState.Closed）
????????????????Conn.Open（）;
????????????if?（Conn.State?==?ConnectionState.Broken）
????????????{
????????????????Conn.Close（）;
????????????????Conn.O

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-12-05?16:32??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\
?????文件????????3114??2016-10-25?16:13??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\51Aspx源碼必讀.txt
?????文件????????4945??2016-10-18?10:32??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\from.gif
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\.vs\
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\.vs\WindowsFormsApplication1\
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\.vs\WindowsFormsApplication1\v14\
?????文件??????122880??2016-10-25?16:21??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\.vs\WindowsFormsApplication1\v14\.suo
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\
?????文件?????????187??2016-10-18?11:10??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\App.config
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\
?????文件?????2479616??2016-10-25?16:06??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe
?????文件?????????187??2016-10-18?11:10??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe.config
?????文件??????183808??2016-10-25?16:06??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb
?????文件???????22696??2016-10-25?16:21??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe
?????文件?????????187??2016-10-18?11:10??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.config
?????文件?????????490??2016-07-16?19:44??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest
?????目錄???????????0??2016-10-18?11:13??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\bin\Release\
?????文件????????2299??2016-10-25?15:54??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\DBHelper.cs
?????目錄???????????0??2016-12-05?16:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\
?????文件????????7220??2016-10-18?12:30??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\1.jpg
?????文件????????7063??2016-10-18?12:30??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\10.jpg
?????文件??????196093??2016-10-18?12:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\11.jpg
?????文件??????135726??2016-10-18?12:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\12.jpg
?????文件???????96408??2016-10-18?12:17??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\13.jpg
?????文件???????86611??2016-10-18?12:15??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\14.jpg
?????文件???????92368??2016-10-18?12:18??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\15.jpg
?????文件??????298398??2016-10-18?12:17??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\16.jpg
?????文件????????6379??2016-10-18?12:30??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\2.jpg
?????文件????????6595??2016-10-18?12:30??倉(cāng)庫(kù)條碼管理系統(tǒng)2.8\WindowsFormsApplication1\WindowsFormsApplication1\images\3.jpg
............此處省略126個(gè)文件信息