在上面的代码中,我们定义了一个wait_for_space_key函数,它会不断循环检测是否有空格键被按下。一旦检测到空格键被按下,就会输出提示信息并跳出循环,执行后续的跳跃动作。 状态图 下面是一个状态图,展示了等待空格键按下的流程: Space key pressedJump action triggeredWaitSpaceKeyPressed 序列图 下面是一个序列图...
def waitKey(delay=None): # real signature unknown; restored from __doc__ """ waitKey([, delay]) -> retval . @brief Waits for a pressed key. . . The function waitKey waits for a key event infinitely (when \f$\texttt{delay}\leq 0\f$ ) or for delay . milliseconds, when it i...
key = cv2.waitKey(1) & 0xFF # clear the stream in preparation for the next frame rawCapture.truncate(0) # if the `q` key was pressed, break from the loop if key == ord("q"): break 正如你所看到的,Raspberry Pi 相机的视频流正在被 OpenCV 读取,然后显示在屏幕上!此外,Raspberry Pi ...
time Alias for field number 1 mouse.X = 'x' mouse.X2 = 'x2' mouse.version = '0.7.1' mouse.is_pressed(button='left') Returns True if the given button is currently pressed. mouse.press(button='left') #按压 Presses the given button (but doesn't release). mouse.release(button='...
while key != 27: cv2.imshow('Honeymoon Island', img) key = cv2.waitKey() # 如果获取的键值小于256则作为ascii码输出对应字符,否则直接输出值 msg = '{} is pressed'.format(chr(key) if key < 256 else key) print(msg)通过这个程序我们能获取一些常用特殊按键的值,比如在笔者用的机器上,四个...
add(key) else: hits = sorted([ str(key) for key in current_modifiers ]) + [ str(key) ] hits = '+'.join(hits) pending_hits.put(hits) log.debug(f'{key} pressed, current_modifiers: {current_modifiers}') def on_release(key): if key in MODIFIERS: try: current_modifiers.remove(...
我的python模块键盘命令可以正常工作,只要在无限while循环中没有其他内容。 当while循环中有其他内容时,keyboard.is_pressed()就不起作用了。 有人能解释为什么吗? import keyboard import time while True: if keyboard.is_pressed('a'): print("/t/tThe 'a' key has been pressed") time.sleep(0.1) if ...
events = [i for i in dir(cv) if 'EVENT' in i] print( events ) 1. 2. 3. 4. 我们查看输出,会发现一大堆参数名称: ['EVENT_FLAG_ALTKEY', 'EVENT_FLAG_CTRLKEY', 'EVENT_FLAG_LBUTTON', 'EVENT_FLAG_MBUTTON', 'EVENT_FLAG_RBUTTON', 'EVENT_FLAG_SHIFTKEY', 'EVENT_LBUTTONDBLCLK', 'EV...
Wait for sleep to finishSleep interrupted by key pressSleepKey_Pressed 完整代码 下面是完整的代码示例: importtimeimportthreadingimportkeyboarddefthread_sleep(seconds):time.sleep(seconds)print("Sleep finished")defthread_key():keyboard.wait('space')print("Key pressed")t1=threading.Thread(target=thread_...
Waiting for a key press one time 等待某个键 importkeyboard# Don't do this! This will use 100% of your CPU until you press the key.# 不要使用下面的代码, 它会占用100%的CPU##while not keyboard.is_pressed('space'):# continue#print('space was pressed, continuing...')# Do this instea...