C＃告知如何在选择后更改工具条上的图像

toolStripButton.Image = Image.FromFile("directory of your file");

this.toolStripMuteButton.CheckOnClick = true;

if (toolStripMuteButton.Checked)
            {
                this._lastMicVol = tag.Volume;
                this.toolStripMuteButton.Image = lobal::Properties.Resources.microphone2;
                tag.Volume = 0;
            }
            else
            {
                this.toolStripMuteButton.Image = global::Properties.Resources.microphone1;
                tag.Volume = this._lastMicVol;
            }

ImageList imageList1;

toolStripButton image

toolStripButton1.Image = imageList1.Images[imageIndex];