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
'''
原文地址:https://www.cnblogs.com/chenxi188/p/10524082.html