Question

我是python的新手，我正在尝试编写一个程序来计算每月投资的未来价值。这是我到目前为止的内容：

var client = algoliasearch(algClient, apiKey);
var index = client.initIndex(algIndex);
var paintingAutocomplete = {
  source: autocomplete.sources.hits(index, { hitsPerPage: 4 }),
  displayKey: "title",
  templates: {
    header: '<div class="ad-example-header">Painting</div>',
    suggestion: function(suggestion) {
      console.log(suggestion);

      return (
        '<img class="search-thumbnail" src="https://res.cloudinary.com/b3/h_360/' +
        suggestion["field_file_name:file"] +
        '" />' +
        suggestion.title
      );
    }
  }
};

var autocompleteInstance = autocomplete(
  document.querySelector("#search-input"),
  {
    hint: false,
    debug: true,
      cssClasses: { prefix: 'ad-example'}
  },
  [
    paintingAutocomplete,
  ]
).on("autocomplete:selected", function(event, suggestion) {
    // console.log(suggestion, );
});

var autocompleteChangeEvents = ["selected", "autocompleted"];

autocompleteChangeEvents.forEach(function(eventName) {
  autocompleteInstance.on("autocomplete:" + eventName, function(event, suggestion, datasetName) {
    // Call the search here...
  });
});

search.start();

结果如下所示：

我的基本布局效果很好。我在数学方面不擅长，有人可以帮我吗？另外，有人可以告诉我当用户不想再继续打印时如何使“再见”打印吗？现在，当您按下n时，它可以回到起点。

Answer 1

while循环每次循环时都会检查变量choice。收到用户输入后，您将答案设置为continue_runs而不是choice。如果将用户输入改为choice，则可能会在功能上获得正确的选择。

要计算时间序列付款后的未来价值，您将使用F / A方程。我发现该网站具有一些常用公式：https://www.me.utexas.edu/~me353/lessons/S2_Evaluation/L02_Equivalence/factor_formulas.html

F = A [（1 + i）^ N-1] / i

您要寻找的是“统一系列复合量因子”。您将使用i作为月利率（年利率）/ 12。 N是总月数。然后，将其乘以A（即每月的缴款）。

Answer 2

您可以使用break中断循环。我会让你去解决数学问题

#display a welcome message
print("Welcome to the Future Value Calculator\n")

monthly_invest = int(input("Enter monthly investment:\t"))
yearly_interest_rate = float(input("Enter yearly interest rate:\t"))
years = int(input("Enter number of years:\t\t"))

#Yearly values to monthly values

monthly_interest_rate =  yearly_interest_rate / 12 / 100
months = years * 12
future_value = 0

for i in range(years):

    future_value += monthly_invest
    monthly_amount = future_value * monthly_interest_rate
    future_value += monthly_amount

    print("\nYear = " + str(i+1) + "\t" + "Future value: " +  str(round(future_value)))

    #Is the loop over?
    if i == years-1:
        break
    #Does the user want to continue?
    continue_runs = (input("\nContinue (y/n)? "))
    if continue_runs.lower()=='n':
        break        

print("Bye!")

每月投资计算器的未来价值-Python

2 个答案: