1 <asp:CheckBox ID="CheckBox1" runat="server" Text ="苹果"/>2 <asp:CheckBox ID="CheckBox2" runat="server" Text ="柠檬"/>3 <asp:CheckBox ID="CheckBox3" runat="server" Text ="橘子"/>4 <asp:CheckBox ID="CheckBox4" runat="server" Text ="桃子"/>5 <asp:Button ID="Button2" runat="server" Text="结果" OnClick ="Button2_Click"/>6 <asp:Label ID="Label2" runat="server" Text=""></asp:Label>

 1 /// <summary> 2 /// Button单击事件 3 /// </summary> 4 /// <param name="sender"></param> 5 /// <param name="e"></param> 6 protected void Button2_Click(object sender, EventArgs e) 7 { 8     string s = string.Empty; 9 10     if (this.CheckBox1.Checked)11     {12         s += this.CheckBox1.Text + " ";13     }14     if (this.CheckBox2.Checked)15     {16         s += this.CheckBox2.Text + " ";17     }18     if (this.CheckBox3.Checked)19     {20         s += this.CheckBox3.Text + " ";21     }22     if (this.CheckBox4.Checked)23     {24         s += this.CheckBox4.Text + " ";25     }26 27     this.Label2.Text = "你选择的水果有：" + s;28 }