原文:

this

.button1.Content

=

"

正在计算

"

;

Action action

=

new

Action(()

=>

{

System.Threading.Thread.Sleep(

3000

);

this

.Dispatcher.BeginInvoke(

new

Action(()

=>

{

this

.button1.Content

=

"

计算完毕

"

;

}), System.Windows.Threading.DispatcherPriority.SystemIdle,

null

);

});

action.BeginInvoke(

null

,

null

);