[ system.runtime.interop services.dllimport ] publicstaticexternboolsendmessage ([ system.runtime.interop services.] privatevoidmovecontrol (control sender，MouseEventArgs e ) if ) e.button==mouse buttons.lefte.clicks==1)令人感动的凉面sendmmm sendmessage(sender.handle，0x 0202，0，0 )； }添加} else { //双击或右键单击代码……} privatevoidbutton3_ mousedown (对象发送器，MouseEventArgs e ) movecontrol (对象控制) sendown (发送器)