c# 中如何封装一个方法?

我想封装一个方法简便一下代码,大概内容是鼠标移动到按钮会在Image中加上图片以,如果按钮是已经点击过的,鼠标移动过去不会发变改mIage状态。
private static bool picregisterFlag;
private static bool picuserAdministrationFlag;
private void pictureBox1_Click_1(object sender, EventArgs e)
{
(** this.tabControl1.SelectedIndex = 0;**

** picregisterFlag=true;**

  • picuserAdministrationFlag = false;

** picregister.BackgroundImage = Resources.用户注册选中;**

  •     picuserAdministration.BackgroundImage = Resources.用户管理;**)
    

    对这部分进行封装一个方法
    }
    private void pictureBox2_Click(object sender, EventArgs e)
    {
    this.tabControl1.SelectedIndex = 1;

        picregisterFlag = false;
        picuserAdministrationFlag = true;
    
        picregister.BackgroundImage = Resources.用户注册;
        picuserAdministration.BackgroundImage = Resources.用户管理选中;
    }
    
                    private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
    {
        if (picregisterFlag == true) { picregister.Image = null; }
        else { picregister.Image = Resources.导航鼠标经过; }
    }
    
                    private void pictureBox2_MouseMove(object sender, MouseEventArgs e)
    {
        if (picuserAdministrationFlag == true) { picuserAdministration.Image = null; }
        else { picuserAdministration.Image = Resources.导航鼠标经过; }
    }
    

https://ask.csdn.net/questions/714732 一样的问题

如果问题得到解决,请点我回答左上角的采纳和向上的箭头

请问在按钮或者timer控件中写的函数要怎么封装?