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首页 > 解决方案 > 我有 2 个清单（月份和费用的名称）。我必须输入用户的费用并告诉具有相同费用的月份名称

python - 我有 2 个清单（月份和费用的名称）。我必须输入用户的费用并告诉具有相同费用的月份名称

问题描述

month_list = ["January","Februarty","March","April","May"]
expense_list = [2340, 2500, 2100, 3100, 2980]
exp = int(input("Enter your expense:"))
for i in range(5):
    if exp == expense_list[i]:
        print('Your expense matches with the month of',month_list[i])
    else:
        print('Your expense does not matches with the list')
        break

我试过这段代码，但只有当我输入第一个月的费用时它才会运行，其余月份它不起作用。 请帮忙

标签： python

解决方案

如果匹配，您想从循环中中断。这样else如果没有匹配将执行。利用：

month_list = ["January","Februarty","March","April","May"]
expense_list = [2340, 2500, 2100, 3100, 2980]
exp=int(input("Enter your expense:"))
for i in range(5):
 if exp==expense_list[i]:
  print('Your expense matches with the month of',month_list[i])
  break
else:
  print('Your expense does not matches with the list')

更好的方法：

for x, y in zip(month_list, expense_list):
    if y == exp:
        print('Your expense matches with the month of ', x)
        break
else:
    print('Your expense does not matches with the list')

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