BookManager/frmMain.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using BookManager.frmAdmin;
using BookManager.frmBook;
using BookManager.frmBorrower;
using BookManager.frmBookType;
using BookManager.frmBorrBook;
using BookManager.frmFine;

namespace BookManager
{
    public partial class frmMain : Form
    {
        public frmMain()
        {
            InitializeComponent();
        }
        private void 添加用户ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmAdminAdd f = new frmAdminAdd();
            f.MdiParent = this;
            f.Show();
        }

        private void 查询用户信息ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmAdminInfo f = new frmAdminInfo();
            f.MdiParent = this;
            f.Show();
        }

        private void 新书上架ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmBookAdd f = new frmBookAdd();
            f.MdiParent = this;
            f.Show();
        }

        private void 查询图书信息ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmBookInfo f = new frmBookInfo();
            f.MdiParent = this;
            f.Show();
        }

        private void 旧书淘汰ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmBookDel f = new frmBookDel();
            f.MdiParent = this;
            f.Show();
        }

        private void 办理借书证ToolStripMenuItem_Click(object sender, EventArgs e)
        {