表格更新成本 二 问用户年龄和口令,直到他们提供有效的输入
#!python3 #updateProduce.py-更正指定产品 成本价格(第二列) import openpyxl wb=openpyxl.load_workbook('produceSales.xlsx') sheet=wb.active #或sheet=wb['Sheet'] # 需要更新成本价格的产品,字典格式 PRICE_UPDATES = {'Garlic': 3.07, 'Celery': 1.19, 'Lemon': 1.27} #循环每一行,找到产品名等于字典键(key)的,更新其值(value) print('更新中,请稍后……') for rowNum in range(2,sheet.max_row): proName=sheet.cell(row=rowNum,column=1).value if proName in PRICE_UPDATES: sheet.cell(row=rowNum,column=2).value=PRICE_UPDATES[proName] #把更新成本后表格,保存到复制的表 wb.save('produceSales_update.xlsx') print('完成更新!/n 请在表【produceSales_update.xlsx】内查看')
问用户年龄和口令,直到他们提供有效的输入
''' 下面的程序反复询 问用户年龄和口令,直到他们提供有效的输入 保存为 validateInput.py ''' while True: print('Enter your age:') age = input() if age.isdecimal(): break print('Please enter a number for your age.') while True: print('Select a new password (letters and numbers only):') password = input() if password.isalnum(): break print('Passwords can only have letters and numbers.') '''输出 Enter your age: mn Please enter a number for your age. Enter your age: 12 Select a new password (letters and numbers only): ;ll;; Passwords can only have letters and numbers. Select a new password (letters and numbers only): dsf123 '''