例如: void Button1 Click(object sender, EventArgs if(CheckBoxl Checked== true) Labe1l.Text="复选框1被选中 e⊥se Labe11.Text="复选框1未被选中例如： void Button1_Click(object sender, EventArgs e) { if (CheckBox1.Checked == true) Label1.Text = "复选框1被选中" ; else Label1.Text = "复选框1未被选中" ; }