添加项目文件。

2026-01-16 20:53:33 +08:00
parent a75be0a011
commit a254118c27
92 changed files with 36090 additions and 0 deletions
--- a/口罩泄露定制款/Excle/UserExcleHelper.cs
+++ b/口罩泄露定制款/Excle/UserExcleHelper.cs
@@ -0,0 +1,159 @@
+using OfficeOpenXml;
+using System.Collections.Generic;
+using System.Data;
+using System.Windows.Forms;
+
+namespace 口罩泄露定制款.Excle
+{
+    internal class UserExcleHelper
+    {  //文件路径
+        static string path = Application.StartupPath + @"\UserExcleHelper.xlsx";
+        //向表格中写入用户数据
+        public void WriteData(string username, string password, string quanxian)
+        {
+            bool isHave = false;
+            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            //创建Excel对象
+            ExcelPackage package = new ExcelPackage(new System.IO.FileInfo(path));
+            // 获取第一个工作表，如果不存在则创建  
+            ExcelWorksheet worksheet;
+            if (package.Workbook.Worksheets.Count == 0)
+            {
+                worksheet = package.Workbook.Worksheets.Add("用户表");
+                worksheet.Cells[1, 1].Value = "用户名";
+                worksheet.Cells[1, 2].Value = "密码";
+                worksheet.Cells[1, 3].Value = "用户权限";
+                worksheet.Cells[2, 1].Value = "admin";
+                worksheet.Cells[2, 2].Value = "admin123456";
+                worksheet.Cells[2, 3].Value = "管理员";
+            }
+            else
+            {
+                worksheet = package.Workbook.Worksheets[0];
+            }
+            //判断用户名是否存在
+            for (int i = 2; i <= worksheet.Dimension.Rows; i++)
+            {
+                if (worksheet.Cells[i, 1].Value.ToString() == username)
+                {
+                    isHave = true;
+                    break;
+                }
+            }
+            if (isHave)
+            {
+                MessageBox.Show("用户名已存在！");
+                return;
+            }
+            else
+            {
+                int row = worksheet.Dimension.Rows + 1;
+                worksheet.Cells[row, 1].Value = username;
+                worksheet.Cells[row, 2].Value = password;
+                worksheet.Cells[row, 3].Value = quanxian;
+                //保存并关闭文件
+                package.Save();
+            }
+
+        }
+        //读取表格用户名数据
+        public List<string> ReadUserNameData()
+        {
+            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            //创建Excel对象
+            ExcelPackage package = new ExcelPackage(new System.IO.FileInfo(path));
+            // 获取第一个工作表，如果不存在则创建  
+            ExcelWorksheet worksheet;
+            if (package.Workbook.Worksheets.Count == 0)
+            {
+               // WriteData("","","");
+                return null;
+            }
+            else
+            {
+                worksheet = package.Workbook.Worksheets[0];
+            }
+            List<string> list = new List<string>();
+            for (int i = 2; i <= worksheet.Dimension.Rows; i++)
+            {
+                list.Add(worksheet.Cells[i, 1].Value.ToString());
+            }
+            return list;
+        }
+        //读取所有单元格信息并存放在datatable中
+        public DataTable ReadUserData()
+        {
+            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            //创建Excel对象
+            ExcelPackage package = new ExcelPackage(new System.IO.FileInfo(path));
+            // 获取第一个工作表，如果不存在则创建  
+            ExcelWorksheet worksheet;
+            if (package.Workbook.Worksheets.Count == 0)
+            {
+                return null;
+            }
+            else
+            {
+                worksheet = package.Workbook.Worksheets[0];
+            }
+            DataTable dt = new DataTable();
+            dt.Columns.Add("用户名");
+            dt.Columns.Add("密码");
+            dt.Columns.Add("用户权限");
+            for (int i = 2; i <= worksheet.Dimension.Rows; i++)
+            {
+                DataRow dr = dt.NewRow();
+                dr["用户名"] = worksheet.Cells[i, 1].Value.ToString();
+                dr["密码"] = worksheet.Cells[i, 2].Value.ToString();
+                dr["用户权限"] = worksheet.Cells[i, 3].Value.ToString();
+                dt.Rows.Add(dr);
+            }
+            return dt;
+        }
+        //修改用户信息
+        public void UpdateUserData(int index, string username, string password, string quanxian)
+        {
+            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            //创建Excel对象
+            ExcelPackage package = new ExcelPackage(new System.IO.FileInfo(path));
+            // 获取第一个工作表，如果不存在则创建  
+            ExcelWorksheet worksheet;
+            if (package.Workbook.Worksheets.Count == 0)
+            {
+                return;
+            }
+            else
+            {
+                worksheet = package.Workbook.Worksheets[0];
+            }
+
+            worksheet.Cells[index, 1].Value = username;
+            worksheet.Cells[index, 2].Value = password;
+            worksheet.Cells[index, 3].Value = quanxian;
+
+            //保存并关闭文件
+            package.Save();
+        }
+        //删除用户信息
+        public void DeleteUserData(int index)
+        {
+            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+            //创建Excel对象
+            ExcelPackage package = new ExcelPackage(new System.IO.FileInfo(path));
+            // 获取第一个工作表，如果不存在则创建  
+            ExcelWorksheet worksheet;
+            if (package.Workbook.Worksheets.Count == 0)
+            {
+                return;
+            }
+            else
+            {
+                worksheet = package.Workbook.Worksheets[0];
+            }
+            //删除指定行
+            worksheet.DeleteRow(index);
+            //保存并关闭文件
+            package.Save();
+        }
+    }
+}