Вот пример, который я вам обещал.
Мне не нужно было импортировать какие-либо моды для этой программы, но я считаю, что мод msvcrt , который я использую для управления вводом с клавиатуры, Windows специфические c. Как бы то ни; Несмотря на то, что мы используем разные методы для управления вводом с клавиатуры, я надеюсь, вы увидите, как вашим секундомером можно управлять нажатием клавиш, в то время как основная программа постоянно зацикливается и обрабатывает ввод с клавиатуры.
Если вы найдете этот пример полезным, пожалуйста не забудьте нажать на команду «Принять ответ». Спасибо и получайте удовольствие !!
import time # Contains the time.time() method.
import winsound # Handle sounds.
import msvcrt # Has Terminal Window Input methods
# ===========================================
# -------------------------------------------
# -- Kbfunc() --
# Returns ascii values for those keys that
# have values, or zero if not.
def kbfunc():
return ord(msvcrt.getch()) if msvcrt.kbhit() else 0
# -------------------------------------------
# -- Get_Duration() --
# Gets the time duration for the stopwatch.
def get_duration():
value = input("\n How long do you want the timer to run? ")
try:
value = float(value)
except:
print("\n\t** Fatal Error: **\n Float or Integer Value Expected.\n")
exit()
return value
# ===========================================
# Body
# ===========================================
# To keep the program as simple as possible, we will only use
# standard ascii characters. All special keys and non-printable
# keys will be ignored. The one exception will be the
# carriage return key, chr(13).
# Because we are not trapping special keys such as the
# function keys, many will produce output that looks like
# standard ascii characters. (The [F1] key, for example,
# shares a base character code with the simicolon.)
valid_keys = [] # Declare our valid key list.
for char in range(32,127): # Create a list of acceptable characters that
valid_keys.append(char) # the user can type on the keyboard.
valid_keys.append(13) # Include the carriage return.
# ------------------------------------------
duration = 0
duration = get_duration()
print("="*60)
print(" Stopwatch will beep every",duration,"seconds.")
print(" Press [!] to turn Stopwatch OFF.")
print(" Press [,] to turn Stopwatch ON.")
print(" Press [@] to quit program.")
print("="*60)
print("\n Type Something:")
print("\n >> ",end="",flush = True)
run_cycle = True # Run the program until user says quit.
stopwatch = True # Turn the stopwatch ON.
T0 = time.time() # Get the time the stopwatch started running.
while run_cycle == True:
# ------
if stopwatch == True and time.time()-T0 > duration: # When the duration
winsound.Beep(700,300) # is over, sound the beep and then
T0 = time.time() # reset the timer.
# -----
key = kbfunc()
if key == 0:continue # If no key was pressed, go back to start of loop.
if key in valid_keys: # If the user's key press is in our list..
if key == ord(","): # A comma means to restart the timer.
duration = get_duration() # Comment line to use old duration.
print(" >> ",end="",flush = True) # Comment line to use old duration.
t0 = time.time()
stopwatch = True
continue # Remove if you want the ',' char to be printed.
elif key == ord("!"): # An exclamation mark means to stop the timer.")
stopwatch = False
continue # Remove if you want the "!" to print.
elif key == ord("@"): # An At sign means to quit the program.
print("\n\n Program Ended at User's Request.\n ",end="")
run_cycle = False # This will cause our main loop to exit.
continue # Loop back to beginning so that the at sign
# is not printed after user said to quit.
elif key == 13: # The carriage return means to drop down to a new line.
print("\n >> ",end="",flush = True)
continue
print(chr(key),end="",flush = True) # Print the (valid) character.
# Keys that are not in our list are simply ignored.