K12教育赛事综合服务平台
聚乐之家官方网站
下载聚乐之家官方App
专注青少年竞赛题库网站
某便利店需要编写程序模拟购物找零计算：已知商品总价为78.5元，用户实际支付100元，程序需先判断支付金额是否足够（支付金额≥商品总价），若足够则计算并输出找零金额，若不足则提示“金额不足”。下列选项中能正确实现该模拟逻辑的是：
price = 78.5 pay = 100 if pay >= price: change = pay - price print(f'应找零：{change}元') else: print('金额不足')
price = 78.5 pay = 100 if pay < price: change = pay - price print(f'应找零：{change}元') else: print('金额不足')
price = 78.5 pay = 100 change = pay - price if pay >= price: print(f'应找零：{change}元')
price = 78.5 pay = 100 if pay >= price: print('金额不足') else: change = pay - price print(f'应找零：{change}元')