Question

C# 如何清空panel中pictureBox中的图片？（panel里面放了好多pictureBox）

Answer 1

foreach (var item in this.panel1.Controls)
{
if (item is PictureBox)
{
((PictureBox)item).Image = null;
}
}
如果是全部都是PIctureBox : this.panel1.Controls.Clear();

Answer 2

picturebox.image=null;