有如下代码:
PictureBox = new PictureBox();
PictureBox1 = new PictureBox();PictureBox.Image = imageList1.Images[0];
PictureBox1.Image = imageList1.Images[0];if(PictureBox.Image==PictureBox1.Image)
    messagebox.show("");为什么if的条件总是FALSE呢?