不能用'float'类型的非int来乘以序列

问题描述

为什么我得到错误不能乘以类型为'float'的非整型序列？

level：beginner

  def nestEgVariable（salary，save，growthRates）：
 SavingsRecord = [] 
 fund = 0 
 depositPerYear = salary * save * 0.01 
 for i in growth比率：
 fund = fund *（1 + 0.01 * growthRates）+ depositPerYear 
 SavingsRecord + = [fund，] 
返回SavingsRecord 
 
 
 print nestEgVariable（10000,10，[3,4,5,0,3]）
  

感谢
Baba

解决方案

  for i in growthRates：
 fund = fund *（1 + 0.01 * growthRates）+ depositPerYear 
  

应该是：

  for i in growthRates：
 fund = fund *（1 + 0.01 * i ）+ depositPerYear 
  

您将使用growRates列表对象乘以0.01。乘以一个整数的列表是有效的（它是超负荷的语法糖，它允许你创建一个带有其元素引用副本的扩展列表）

示例：

 >>> 2 * [1,2] 
 [1,2,1,2] 
  

level: beginner

why do i get error "can't multiply sequence by non-int of type 'float'"?

def nestEgVariable(salary, save, growthRates):
    SavingsRecord = []
    fund = 0
    depositPerYear = salary * save * 0.01
    for i in growthRates:  
        fund = fund * (1 + 0.01 * growthRates) + depositPerYear
        SavingsRecord += [fund,]
    return SavingsRecord 


print nestEgVariable(10000,10,[3,4,5,0,3])

thanksBaba

解决方案

for i in growthRates:  
    fund = fund * (1 + 0.01 * growthRates) + depositPerYear

should be:

for i in growthRates:  
    fund = fund * (1 + 0.01 * i) + depositPerYear

You are multiplying 0.01 with the growthRates list object. Multiplying a list by an integer is valid (it's overloaded syntactic sugar that allows you to create an extended a list with copies of its element references).

Example:

>>> 2 * [1,2]
[1, 2, 1, 2]

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