[]截屏问题className:layaair/game/browser/ExportJavaFunction,methodName：captureScreen

if( window.conch )
{
var content=Laya.Browser.context;
var width=800;
var height=500;
window.conch.captureScreen(function(content,width,height){
conch.saveAsPng( content,width,height,conch.getCachePath()+"/test.png" );
})
}