Python中製作有趣的流水燈

1. 普通的流水燈

import time

import sys
fresh_time = 0.3
length = 7
mod = 1
if mod == 1:
print("flowing light:")
while mod == 1:
for i in range(length):
bar = ['['] + [' '] * length + [']']
bar[i + 1] = '*'
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)

elif mod == 2:

print("accumulated flowing light:")
while mod == 2:
for j in range(length):
for i in range(length - j):
bar = ['['] + [' '] * (length - j) + ['*'] * j + [']']
bar[i + 1] = '*'
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)
time.sleep(fresh_time)

elif mod == 3:

print("round flowing light:")
while mod == 3:
for j in range(2):
for i in range(length):
bar = ['['] + [' '] * length + [']']
if j == 0:
bar[i + 1] = '*'
else:
bar[-(i + 2)] = '*'
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)

elif mod == 4:

print("flowing word light:")
word = "i love u"
while mod == 4:
bar = ['['] + ['*'] * len(word) + [']']
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)
for i in range(len(word)):
bar[i + 1] = word[i]
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)

elif mod == 5:

print("process bar:")
while mod == 5:
for i in range(length):
bar = ['['] + [' '] * length + [']']
for j in range(i + 1):
bar[j + 1] = '*'
bar_show = ''.join(bar)
print('\r{}'.format(bar_show), end='')
time.sleep(fresh_time)

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