一、数据库设计（MySQL）

数据库名称：BillManagement
关系模式设计：

收支表（收支编号，收支类型，日期，收支人，金额，说明，类别编号）
incomeAndExpenses(InExId,InType,InDate,Person,Money,Explain,CateId)收支类别（类别编号，收支类型，类别名称）
Category(CateId,CaType,CaName)收支项目（项目编号，类别编号，项目名称）
Project(ProId,CateId,ProName)用户表（用户编号，用户名，用户密码）
UserBill(UserId,UserName,UserPassWord)

建表

#建库
CREATE DATABASE IF NOT EXISTS BillManagement;
#建Category(CateId,CaType,CaName)表
CREATE TABLE IF NOT EXISTS Category(CateId INT  NOT NULL AUTO_INCREMENT,CaType CHAR(10),CaName CHAR(10),PRIMARY KEY(CateId)
)
#建incomeAndExpenses(InExId,InType,InDate,Person,Money,CateId)表
CREATE TABLE IF NOT EXISTS incomeAndExpenses(InExId INT NOT NULL AUTO_INCREMENT,InType CHAR(10),InDate DATE,Person CHAR(10),Money CHAR(10),InExplain CHAR(10),CateId INT,PRIMARY  KEY (InExId),FOREIGN KEY(CateId) REFERENCES  Category(CateId)
)
#建Project(ProId,CateId,ProName)表
CREATE TABLE IF NOT EXISTS Project(ProId INT  NOT NULL AUTO_INCREMENT,CateId INT,ProName CHAR(10),PRIMARY  KEY(ProId),FOREIGN KEY (CateId) REFERENCES  Category(CateId)
)
#建UserBill(UserId,UserName,UserPassWord)表
CREATE TABLE IF NOT EXISTS UserBill(UserId INT  NOT NULL AUTO_INCREMENT,UserName CHAR(10),UserPassWord CHAR(10),PRIMARY  KEY(UserId)
)

二、窗体设计

窗体控件字典：

用户名：userName
密码：passWord
验证码：verificationCode
收入类型-收入：shouRU
收入类型-支出：zhiCu
收入类别：shouRuLeiBie
备注：beiZhu
日期：rQ
说明：shuoMing
收支项目：shouZhiXiangMu

（一）登录窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;namespace PersonalFinanceSystem
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button2_Click(object sender, EventArgs e){if (userName.Text != ""||passWord.Text!=""||verificationCode.Text!=""){userName.Text = "";passWord.Text = "";verificationCode.Text = "";}}private void button3_Click(object sender, EventArgs e){this.Close();}private void userName_TextChanged(object sender, EventArgs e){}private void button1_Click(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion#region 查询//验空if (userName.Text == ""){MessageBox.Show("用户名不能为空", "用户登录", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);}else if (passWord.Text == ""){MessageBox.Show("密码不能为空", "用户登录", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);}else if (verificationCode.Text == ""){MessageBox.Show("验证不能为空", "用户登录", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);}else if (verificationCode.Text != label5.Text){MessageBox.Show("验证码错误，请重新输入", "用户登录", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);}else{//创建命令string username = userName.Text;//获取输入用户名string password = passWord.Text;//获取输入密码string sqlSel = "select count(*) from UserBill where UserName = '" + username + "' and UserPassWord = '" + password + "'";//查询语句MySqlCommand com = new MySqlCommand(sqlSel, conn);//判断executeScalar方法返回的参数是否大于0，大于0表示查找有数据if (Convert.ToInt32(com.ExecuteScalar()) > 0){MessageBox.Show("欢迎加入个人理财系!", "登录成功", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);homepage home = new homepage();this.Hide();home.Show();}else{MessageBox.Show("账户或者密码错误！请重新输入", "用户登录", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);}#endregion}}private void Form1_Load(object sender, EventArgs e){//this.IsMdiContainer = true;Random rd = new Random();label5.Text =Convert.ToString(rd.Next(1000, 10000));}private void label5_Click(object sender, EventArgs e){}}
}

（二）主界面窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace PersonalFinanceSystem
{public partial class homepage : Form{public homepage(){InitializeComponent();}private void homepage_Load(object sender, EventArgs e){this.IsMdiContainer = true;}private void toolStripButton1_Click(object sender, EventArgs e){incomeExpenditure stu = new incomeExpenditure();stu.Show();}private void 收支管理ToolStripMenuItem_Click(object sender, EventArgs e){}private void 添加收支PCtrlPToolStripMenuItem_Click(object sender, EventArgs e){incomeExpenditure stu = new incomeExpenditure();stu.Show();}private void 退出XCtrlXToolStripMenuItem_Click(object sender, EventArgs e){this.Hide();Form1 stu = new Form1();stu.Show();}private void 添加收支项目ICtrlIToolStripMenuItem_Click(object sender, EventArgs e){InExaccount stu = new InExaccount();stu.Show();}private void 关于ACtrlAToolStripMenuItem_Click(object sender, EventArgs e){aboutUs stu = new aboutUs();stu.Show();}private void 统计查询CCtrlCToolStripMenuItem_Click(object sender, EventArgs e){statisticalQuery stu = new statisticalQuery();stu.Show();}private void toolStripButton2_Click(object sender, EventArgs e){statisticalQuery stu = new statisticalQuery();stu.Show();}private void toolStripButton3_Click(object sender, EventArgs e){InExaccount stu = new InExaccount();stu.Show();}private void 用户管理UCtrlUToolStripMenuItem_Click(object sender, EventArgs e){userManagement stu = new userManagement();stu.Show();}private void toolStripButton4_Click(object sender, EventArgs e){userManagement stu = new userManagement();stu.Show();}}
}

（三）收支管理窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;namespace PersonalFinanceSystem
{public partial class incomeExpenditure : Form{public incomeExpenditure(){InitializeComponent();}private void checkBox4_CheckedChanged(object sender, EventArgs e){chenge();}private void button1_Click(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion//获取收入类型string shouruleixing="";if (shouRu.Checked){shouruleixing = "0";}else{shouruleixing = "1";}//获取收入类别string shouruleibie = "";if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}//获取类别编号MySqlCommand cmd2 = new MySqlCommand("SELECT CateId FROM category WHERE CaName = @lb", conn);cmd2.Parameters.AddWithValue("lb", shouruleibie);MySqlDataReader reader2 = cmd2.ExecuteReader();//创建MySqlDataReader对象int liebieid = 0;while (reader2.Read())//每次读一行显示在集合中{liebieid = Convert.ToInt32(reader2[0]);}reader2.Close();//获取日期string date = "";if (rQ.SelectedIndex != -1){date = rQ.SelectedItem.ToString();}else{rQ.SelectedIndex = 0;}//获取说明string shuoming = "";shuoming = shuoMing.Text;//获取收支人string shouzhiren = "";CheckBox[] person = new CheckBox[] { My, Family, Relative, Friend, Classmate, Other };for (int i = 0; i < person.Length; i++){if (person[i].Checked){shouzhiren += person[i].Text + " ";}}//获取金额string jiner = "";jiner = jinEr.Text;//导入数据表#region 插入MySqlCommand cmdd = new MySqlCommand("insert into incomeAndExpenses set InType=@ty,InDate=@dat,Person=@per,Money=@mon,InExplain=@exp,CateId=@cate", conn);cmdd.Parameters.AddWithValue("ty", shouruleixing);//添加值cmdd.Parameters.AddWithValue("dat", date);cmdd.Parameters.AddWithValue("per", shouzhiren);cmdd.Parameters.AddWithValue("mon", jiner);cmdd.Parameters.AddWithValue("exp", shuoming);cmdd.Parameters.AddWithValue("cate", liebieid);//执行语句cmdd.ExecuteNonQuery();this.Close();#endregion}private void incomeExpenditure_Load(object sender, EventArgs e){}//实时统计备注private void chenge(){//获取收入类型string shouruleixing;if (shouRu.Checked){shouruleixing = "收入";}else{shouruleixing = "支出";}//获取收入类别string shouruleibie="";if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}//获取日期string date="";if (rQ.SelectedIndex != -1){date = rQ.SelectedItem.ToString();}else{rQ.SelectedIndex = 0;}//获取说明string shuoming = "";shuoming = shuoMing.Text;//获取收支项目string shouzhixiangmu = "";if (shouZhiXiangMu.SelectedItems.Count == 0){return;}else{                        shouzhixiangmu = shouZhiXiangMu.SelectedItem.ToString();}//获取收支人string shouzhiren = "";CheckBox[] person = new CheckBox[] { My, Family, Relative, Friend, Classmate, Other };for (int i = 0; i < person.Length; i++){if (person[i].Checked){shouzhiren += person[i].Text + " ";}}//获取金额string jiner = "";jiner = jinEr.Text;//合并备注string remark = "";remark += "要保存的信息为：\n";remark += shouruleibie + "-" + shouzhixiangmu + "\n";remark += "日 期：" + date + "\n";remark += "说 明：" + shuoming + "\n";remark += "收支人：" + shouzhiren + "\n";remark += "金 额：" + jiner;beiZhu.Text = remark;}private void shouRu_CheckedChanged(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregionshouRuLeiBie.Items.Clear();//创建命令string sql = "SELECT CaName FROM Category WHERE Catype='0'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;reader.Close();//获取选中类别名称string shouruleibie = "";if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}shouZhiXiangMu.Items.Clear();//获取类别编号MySqlCommand cmd2 = new MySqlCommand("SELECT CateId FROM category WHERE CaName = @lb", conn);cmd2.Parameters.AddWithValue("lb", shouruleibie);MySqlDataReader reader2 = cmd2.ExecuteReader();//创建MySqlDataReader对象int liebieid = 0;while (reader2.Read())//每次读一行显示在集合中{liebieid = Convert.ToInt32(reader2[0]);}//shouZhiXiangMu.Items.Add(shouruleibie);// shouZhiXiangMu.Items.Add(liebieid);reader2.Close();//导入项目MySqlCommand cmd3 = new MySqlCommand("SELECT proName FROM project WHERE CateId = @idd", conn);//创建Command对象cmd3.Parameters.AddWithValue("idd", liebieid);//添加值MySqlDataReader reader3 = cmd3.ExecuteReader();//创建MySqlDataReader对象//shouZhiXiangMu.Items.Clear();while (reader3.Read()){shouZhiXiangMu.Items.Add(reader3[0]);}reader3.Close();chenge();}private void zhiChu_CheckedChanged(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregionshouRuLeiBie.Items.Clear();//创建命令string sql = "SELECT CaName FROM Category WHERE Catype='1'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;reader.Close();//获取选中类别名称string shouruleibie = "";if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}shouZhiXiangMu.Items.Clear();//获取类别编号MySqlCommand cmd2 = new MySqlCommand("SELECT CateId FROM category WHERE CaName = @lb", conn);cmd2.Parameters.AddWithValue("lb", shouruleibie);MySqlDataReader reader2 = cmd2.ExecuteReader();//创建MySqlDataReader对象int liebieid = 0;while (reader2.Read())//每次读一行显示在集合中{liebieid = Convert.ToInt32(reader2[0]);}reader2.Close();//导入项目MySqlCommand cmd3 = new MySqlCommand("SELECT proName FROM project WHERE CateId = @idd", conn);//创建Command对象cmd3.Parameters.AddWithValue("idd", liebieid);//添加值MySqlDataReader reader3 = cmd3.ExecuteReader();//创建MySqlDataReader对象//shouZhiXiangMu.Items.Clear();while (reader3.Read()){shouZhiXiangMu.Items.Add(reader3[0]);}reader3.Close();chenge();}private void textBox2_TextChanged(object sender, EventArgs e){chenge();}private void comboBox2_SelectedIndexChanged(object sender, EventArgs e){chenge();}private void shouZhiXiangMu_SelectedIndexChanged(object sender, EventArgs e){chenge();}private void shuoMing_TextChanged(object sender, EventArgs e){chenge();}private void My_CheckedChanged(object sender, EventArgs e){chenge();}private void Family_CheckedChanged(object sender, EventArgs e){chenge();}private void Relative_CheckedChanged(object sender, EventArgs e){chenge();}private void Classmate_CheckedChanged(object sender, EventArgs e){chenge();}private void Other_CheckedChanged(object sender, EventArgs e){chenge();}private void shouRuLeiBie_SelectedIndexChanged(object sender, EventArgs e){chenge();}private void button2_Click(object sender, EventArgs e){this.Hide();}}
}

（四）统计查询窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;namespace PersonalFinanceSystem
{public partial class statisticalQuery : Form{public statisticalQuery(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){string xiangmuName = textBox1.Text;#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregionlistBox1.Items.Clear();#region 查询//创建命令MySqlCommand cmd = new MySqlCommand("SELECT InDate,Person,Money,InExplain,caName FROM incomeAndExpenses,project,category WHERE incomeAndExpenses.CateId=project.CateId AND incomeAndExpenses.CateId=category.cateid AND project.ProName=@xmu;", conn);//创建Command对象cmd.Parameters.AddWithValue("xmu", xiangmuName);//添加值//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象while (reader.Read())//每次读一行显示在集合中{listBox1.Items.Add(string.Format("       日期\t收支人\t金额\t说明   \t收支类型\n"));listBox1.Items.Add(string.Format("{0}\t{1}\t{2}\t{3}\t{4}", reader[0], reader[1], reader[2],reader[3],reader[4]));}reader.Close();#endregion}private void statisticalQuery_Load(object sender, EventArgs e){}}
}

（五）添加收支项目窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;namespace PersonalFinanceSystem
{public partial class InExaccount : Form{public InExaccount(){InitializeComponent();}private void tabPage2_Click(object sender, EventArgs e){}private void button1_Click(object sender, EventArgs e){//获取项目名称string projectName = textBox1.Text;string shouruleibie = "";if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}listBox1.Items.Clear();listBox1.Items.Add("项目名称：" + projectName);listBox1.Items.Add("类别：" + shouruleibie);tabControl1.SelectedIndex = 1;}private void tabPage1_Click(object sender, EventArgs e){this.tabControl1.SelectedTab = tabPage2;}private void button2_Click(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion//获取项目名称string projectName = textBox1.Text;string shouruleibie = "";//获取类别if (shouRuLeiBie.SelectedIndex != -1){shouruleibie = shouRuLeiBie.SelectedItem.ToString();}else{shouRuLeiBie.SelectedIndex = 0;}//获取类别编号MySqlCommand cmd = new MySqlCommand("SELECT CateId FROM category WHERE CaName=@leibie", conn);cmd.Parameters.AddWithValue("leibie", shouruleibie);MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象int liebieid=0;while (reader.Read())//每次读一行显示在集合中{liebieid =Convert.ToInt32(reader[0]);}reader.Close();//插入新项目数据#region 插入MySqlCommand cmdd = new MySqlCommand("insert into Project set CateId=@idd , ProName=@un", conn);cmdd.Parameters.AddWithValue("idd", liebieid);//添加值cmdd.Parameters.AddWithValue("un", projectName);//执行语句cmdd.ExecuteNonQuery();#endregionthis.Close();}private void listBox1_SelectedIndexChanged(object sender, EventArgs e){}private void radioButton1_CheckedChanged(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion//判断是收入还是支出if (radioButton1.Checked)//收入{#region 查询//创建命令string sql = "SELECT caName FROM Category WHERE Catype='0'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;#endregion}else//支出{//创建命令string sql = "SELECT caName FROM Category WHERE Catype='1'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;}}private void groupBox1_Enter(object sender, EventArgs e){}private void radioButton2_CheckedChanged(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion//判断是收入还是支出if (radioButton1.Checked)//收入{#region 查询//创建命令string sql = "SELECT caName FROM Category WHERE Catype='0'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;#endregion}else//支出{//创建命令string sql = "SELECT caName FROM Category WHERE Catype='1'";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象shouRuLeiBie.Items.Clear();while (reader.Read())//每次读一行显示在集合中{shouRuLeiBie.Items.Add(reader[0]);}shouRuLeiBie.SelectedIndex = 0;}}private void InExaccount_Load(object sender, EventArgs e){}}
}

（六）用户管理窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;namespace PersonalFinanceSystem
{public partial class userManagement : Form{public userManagement(){InitializeComponent();}private void listBox1_SelectedIndexChanged(object sender, EventArgs e){}private void userManagement_Load(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion#region 查询//创建命令string sql = "select * from UserBill";//执行语句MySqlCommand cmd = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmd.ExecuteReader();//创建MySqlDataReader对象listBox1.Items.Add(string.Format("编号\t用户名\t密码"));while (reader.Read())//每次读一行显示在集合中{listBox1.Items.Add(string.Format("{0}\t{1}\t{2}", reader[0], reader[1], reader[2]));}#endregion}private void button1_Click(object sender, EventArgs e){#region 连接数据库//定义连接字符串string connStr = "Database=BillManagement;Data Source=127.0.0.1;port=3306;User Id=root;";MySqlConnection conn = new MySqlConnection(connStr);//创建Connection对象conn.Open();//打开数据库#endregion#region 插入string userName = textBox1.Text;string passWord = textBox2.Text;MySqlCommand cmd = new MySqlCommand("insert into UserBill set UserName=@un , UserPassWord=@pwd", conn);cmd.Parameters.AddWithValue("un", userName);//添加值cmd.Parameters.AddWithValue("pwd", passWord);//执行语句cmd.ExecuteNonQuery();#endregionlistBox1.Items.Clear();#region 查询//创建命令string sql = "select * from UserBill";//执行语句MySqlCommand cmdl = new MySqlCommand(sql, conn);//创建Command对象//执行命令--读取数据MySqlDataReader reader = cmdl.ExecuteReader();//创建MySqlDataReader对象// listBox1.Items.Add(string.Format("编号\t用户名\t密码"));while (reader.Read())//每次读一行显示在集合中{listBox1.Items.Add(string.Format("{0}\t{1}\t{2}", reader[0], reader[1], reader[2]));}#endregion}}
}

（七）关于窗体

逻辑代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace PersonalFinanceSystem
{public partial class aboutUs : Form{public aboutUs(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){this.Hide();}private void aboutUs_Load(object sender, EventArgs e){}}
}

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C#实现个人理财软件小项目

个人理财小软件

一、数据库设计（MySQL）

二、窗体设计

（一）登录窗体

（二）主界面窗体

（三）收支管理窗体

（四）统计查询窗体

（五）添加收支项目窗体

（六）用户管理窗体

（七）关于窗体

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