最简单的方法当然是使用adb
adb shell screencap -p >screenshot.png

不过有些app会限制adb进行截图，这个时候adb截屏为黑屏

此时有两种方法获取截图
第一使用模拟器自带截图快捷键,获取安卓自带截图键，逍遥模拟器为alt+F3
可模拟键盘输入按键（自行百度）
第二种：使用winapi + 电脑屏幕截图
以下为C#代码，python请自行转换（memu为逍遥模拟器的窗口名称）
先获取模拟器句柄，然后使窗口显示，根据窗口大小和位置截图，然后隐藏窗口

        /// <summary>/// 获取模拟器截屏/// </summary>/// <param name="num"></param>public static Bitmap GetEmulatorScreen(int num){Process[] procList = Process.GetProcessesByName("memu");for (int i = 0; i < 20; i++){if (i == num){IntPtr handle = procList[i].MainWindowHandle;ShowWindow(handle, 1);RECT rECT = new RECT();GetWindowRect(handle, ref rECT);Task.Delay(200).Wait();Bitmap bitmap = ScreenShot.GetScreen(rECT.Left, rECT.Top, rECT.Right, rECT.Bottom);ShowWindow(handle, 2);return bitmap;}}return null;}/// <summary>/// 获取窗口位置/// </summary>/// <param name="hWnd"></param>/// <param name="lpRect"></param>/// <returns></returns>[DllImport("user32.dll")][return: MarshalAs(UnmanagedType.Bool)]private static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);[StructLayout(LayoutKind.Sequential)]private struct RECT{public int Left;                          //最左坐标public int Top;                           //最上坐标public int Right;                         //最右坐标public int Bottom;                        //最下坐标}/// <summary>/// 显示窗口/// 0    关闭窗口/// 1    正常大小显示窗口/// 2    最小化窗口/// 3    最大化窗口/// </summary>/// <param name="hwnd"></param>/// <param name="nCmdShow"></param>/// <returns></returns>[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]private static extern int ShowWindow(IntPtr hwnd, int nCmdShow);/// <summary>/// 获取屏幕/// </summary>/// <param name="sourceX">左上角x</param>/// <param name="sourceY">左上角y</param>/// <param name="destinationX">右下角x</param>/// <param name="destinationY">右下角y</param>/// <returns></returns>public static Bitmap GetScreen(int sourceX, int sourceY, int destinationX, int destinationY){if(sourceX < 0){sourceX = 0;}if (sourceY < 0){sourceY = 0;}if(destinationY <= sourceY){destinationY = sourceY + 10;}int Width = destinationX - sourceX;int Height = destinationY - sourceY;Bitmap bmSave = GetScreen();Graphics g = Graphics.FromImage(bmSave);//绘制这个图像g.CopyFromScreen(sourceX, sourceY, destinationX, destinationY, new Size(Width, Height), CopyPixelOperation.SourceCopy);// 2.New一个指定规格的新图片（参数为规格大小）Bitmap tempBitmap = new Bitmap(Width, Height);//3.将新图片绑定到GraphicsGraphics graphics = Graphics.FromImage(tempBitmap);//4.截图图片（原图，新图片的矩形参数，需要截取的矩形区域参数，像素度量单位）graphics.DrawImage(bmSave, new Rectangle(0, 0, Width, Height), new Rectangle(sourceX, sourceY, Width, Height), GraphicsUnit.Pixel);return tempBitmap;}/// <summary>/// 获取全屏截图/// </summary>/// <returns></returns>public static Bitmap GetScreen(){Bitmap bmSave = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);Graphics g = Graphics.FromImage(bmSave);//绘制这个图像g.CopyFromScreen(0, 0, 0, 0, new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height), CopyPixelOperation.SourceCopy);return bmSave;}