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Àý×Ó˵Ã÷£ºÔÚÏîÄ¿ÖÐÐÂÁ½¸ö´°Ì壺һ¸öÊÇForm1²¢ÇÒÔÚForm1ÉÏÓÐÒ»Button°´Å¥£¬ÁíÒ»¸öÊÇForm2£¬´ïµ½±êÊǽ«Form1ʵÀý¶ÔÏ󴫸øForm2£¬Í¬Ê±Form2Öл¹ÄÜ·ÃÎÊForm1ÖеÄButton°´Å¥¡£

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----------Form1´°ÌåµÄ´úÂë

   public class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Éè¼ÆÆ÷Ö§³ÖËùÐèµÄ·½·¨ - ²»Òª
        /// Ê¹ÓôúÂë±à¼­Æ÷Ð޸Ĵ˷½·¨µÄÄÚÈÝ¡£
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(99, 80);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        /// <summary>
        /// ½«°´Å¥¿Ø¼þÉèΪpublic
        /// </summary>
        public System.Windows.Forms.Button button1;

        /// <summary>
        /// ´´½¨Form2´°Ìå¶ÔÏó
     /// </summary>
        private Form2 _frmForm2 = new Form2();

        private void button1_Click(object sender, EventArgs e)
        {
            _frmForm2.FrmTest = this;
            _frmForm2.Show();
        }
    }

--------Form2´°ÌåµÄ´úÂ룺

  public class Form2 : Form
    {
        private Form1 _frmTest;

        /// <summary>
        /// »ñÈ¡»òÉèÖô°ÌåForm1¶ÔÏó
     /// </summary>
        public Form1 FrmTest
        {
            get { return _frmTest; }
            set { _frmTest = value; }
        }

        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            this.FrmTest.button1.Text = "ÐÞ¸ÄForm1´°Ìå°´Å¥TextÊôÐÔ";
        }
    }

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