JQuery to click a button in an iframe

问题

I am trying to use the following to click on a button found on a website that I do not have access to the html of.

$('#ContentFrame').contents().find('#btnPunch').click();

I have been unable to find instructions on how to enable/install/use JQuery commands in a WinForm webBrowser Control.

Please help with this. Thank you

来源：https://stackoverflow.com/questions/32357682/jquery-to-click-a-button-in-an-iframe