01 需求
每天早上定時更新系統的數據到excel表中方便處理
02 編寫好更新程序
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03 利用睡眠函數實現到點執行
import time, datetime
startTime = datetime.datetime(2021, 6, 18, 12, 0, 0)
print('Program not starting yet...')
while datetime.datetime.now() < startTime:
time.sleep(1)
print('Program now starts on %s' % startTime)
print('Executing...')