Python实现屏幕截图的两种方式

import timeimport win32gui, win32ui, win32con, win32apidef window_capture(filename):  hwnd = 0 # 窗口的编号，0号表示当前活跃窗口  # 根据窗口句柄获取窗口的设备上下文DC（Divice Context）  hwndDC = win32gui.GetWindowDC(hwnd)  # 根据窗口的DC获取mfcDC  mfcDC = win32ui.CreateDCFromHandle(hwndDC)  # mfcDC创建可兼容的DC  saveDC = mfcDC.CreateCompatibleDC()  # 创建bigmap准备保存图片  saveBitMap = win32ui.CreateBitmap()  # 获取监控器信息  MoniterDev = win32api.EnumDisplayMonitors(None, None)  w = MoniterDev[0][2][2]  h = MoniterDev[0][2][3]  # print w,h　　　#图片大小  # 为bitmap开辟空间  saveBitMap.CreateCompatibleBitmap(mfcDC, w, h)  # 高度saveDC，将截图保存到saveBitmap中  saveDC.SelectObject(saveBitMap)  # 截取从左上角（0，0）长宽为（w，h）的图片  saveDC.BitBlt((0, 0), (w, h), mfcDC, (0, 0), win32con.SRCCOPY)  saveBitMap.SaveBitmapFile(saveDC, filename)beg = time.time()for i in range(10):  window_capture("haha.jpg")end = time.time()print(end - beg)

import timeimport numpy as npfrom PIL import ImageGrab# 每抓取一次屏幕需要的时间约为1s,如果图像尺寸小一些效率就会高一些beg = time.time()debug = Falsefor i in range(10):  img = ImageGrab.grab(bbox=(250, 161, 1141, 610))  img = np.array(img.getdata(), np.uint8).reshape(img.size[1], img.size[0], 3)end = time.time()print(end - beg)

from selenium import webdriverimport timedef capture(url, filename="capture.png"):  browser = webdriver.Chrome(r"C:/Users/weidiao/Desktop/chromedriver_win32/chromedriver.exe")  browser.set_window_size(1200, 900)  browser.get(url) # Load page  browser.execute_script("""  (function () {   var y = 0;   var step = 100;   window.scroll(0, 0);   function f() {    if (y < document.body.scrollHeight) {     y += step;     window.scroll(0, y);     setTimeout(f, 50);    } else {     window.scroll(0, 0);     document.title += "scroll-done";    }   }   setTimeout(f, 1000);  })(); """)  for i in range(30):    if "scroll-done" in browser.title:      break    time.sleep(1)  beg = time.time()  for i in range(10):    browser.save_screenshot(filename)  end = time.time()  print(end - beg)  browser.close()capture("http://www.vevb.com")

from PIL import ImageGrabim = ImageGrab.grab()im.save('F://12.png')