console.show();
console.setPosition( 10, device.height/6 );

requestScreenCapture();
sleep(1000);

log("截图");
screen = captureScreen();//截成功界面图

log("取 立即购买");
b1 = text("立即购买").findOne(2000);
if( b1 ){
	b1 = b1.bounds();
	var clip = images.clip(screen, b1.centerX()-30, b1.top+10, 60, b1.bottom-b1.top-20 );
	images.save(clip, "/sdcard/GS_Buy.png");
	console.show();
	log("完成！！");
}else{
	alert("未找到按钮！！！！");
}