代码如下：

import java.awt.Desktop;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class CaptureScreen {
public static void captureScreen(String fileName, String folder) throws Exception {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Rectangle screenRectangle = new Rectangle(screenSize);
Robot robot = new Robot();
robot.delay(3000);
for(int i=0;i<10000;i++){
robot.keyPress(KeyEvent.VK_9);
}
BufferedImage image = robot.createScreenCapture(screenRectangle);
//保存路径
File screenFile = new File(fileName);
if (!screenFile.exists()) {
screenFile.mkdir();
}
File f = new File(screenFile, folder);
ImageIO.write(image, "png", f);
//自动打开
if (Desktop.isDesktopSupported()
&& Desktop.getDesktop().isSupported(Desktop.Action.OPEN))
Desktop.getDesktop().open(f);
}
public static void main(String[] args) {
try {
captureScreen("F:\\你好","11.png");
} catch (Exception e) {
e.printStackTrace();
}
}
}

简单说一下就是 for循环键盘输出10000个9.然后执行截屏。但是截屏显示它并没有执行完。这是为什么？是那里的延时

这是他输出完9之后我手动暂停的计时器。可能会慢了不到1s吧。但是5s的延时是那里的 问题。很想知道

人呢？

@╱―★神★―╲

@windsun_ul

技术贴一般水不到经验.真想讨论,时间测试请用junit.