def clear(rows=-1, rows_max=None, *, calling_line=True, absolute=None,
store_max=[]):
"""clear(rows=-1, rows_max=None)
clear(0, -1) # Restore auto-determining rows_max
clear(calling_line=False) # Don't clear calling line
clear(absolute=5) # Absolutely clear out to 5 rows up"""
from os import linesep
if rows_max and rows_max != -1:
store_max[:] = [rows_max, False]
elif not store_max or store_max[1] or rows_max == -1 or absolute:
try:
from shutil import get_terminal_size
columns_max, rows_max = get_terminal_size()
except ImportError:
columns_max, rows_max = 80, 24
if absolute is None:
store_max[:] = [rows_max, True]
if store_max:
if rows == -1:
rows = store_max[0]
elif isinstance(rows, float):
rows = round(store_max[0] * rows)
if rows > store_max[0] - 2:
rows = store_max[0] - 2
if absolute is None:
s = ('\033[1A' + ' ' * 30 if calling_line else '') + linesep * rows
else:
s = '\033[{}A'.format(absolute + 2) + linesep
if absolute > rows_max - 2:
absolute = rows_max - 2
s += (' ' * columns_max + linesep) * absolute + ' ' * columns_max
rows = absolute
print(s + '\033[{}A'.format(rows + 1))
实现:
clear() # Clear all, TRIES to automatically get terminal height
clear(800, 24) # Clear all, set 24 as terminal (max) height
clear(12) # Clear half of terminal below if 24 is its height
clear(1000) # Clear to terminal height - 2 (24 - 2)
clear(0.5) # float factor 0.0 - 1.0 of terminal height (0.5 * 24 = 12)
clear() # Clear to rows_max - 2 of user given rows_max (24 - 2)
clear(0, 14) # Clear line, reset rows_max to half of 24 (14-2)
clear(0) # Just clear the line
clear(0, -1) # Clear line, restore auto-determining rows_max
clear(calling_line=False) # Clear all, don't clear calling line
clear(absolute=5) # Absolutely clear out to 5 rows up
import subprocess, platform
if platform.system()=="Windows":
if platform.release() in {"10", "11"}:
subprocess.run("", shell=True) #Needed to fix a bug regarding Windows 10; not sure about Windows 11
print("\033c", end="")
else:
subprocess.run(["cls"])
else: #Linux and Mac
print("\033c", end="")
import os
def clear():
'''
Clears the terminal screen and scroll back to present
the user with a nice clean, new screen. Useful for managing
menu screens in terminal applications.
'''
os.system('cls' if os.name == 'nt' else 'echo -e \\\\033c')
print('A bunch of garbage so we can garble up the screen...')
clear()
# Same effect, less characters...
def clear():
'''
Clears the terminal screen and scroll back to present
the user with a nice clean, new screen. Useful for managing
menu screens in terminal applications.
'''
os.system('cls||echo -e \\\\033c')
def clearscreen(numlines=100):
"""Clear the console.
numlines is an optional argument used only as a fall-back.
"""
# Thanks to Steven D'Aprano, http://www.velocityreviews.com/forums
if os.name == "posix":
# Unix/Linux/MacOS/BSD/etc
os.system('clear')
elif os.name in ("nt", "dos", "ce"):
# DOS/Windows
os.system('CLS')
else:
# Fallback for other operating systems.
print('\n' * numlines)