+的操作数类型不受支持：“float”和“str”

Question

您好，新的编码和有一些问题的python im得到这个错误

C:\Users\\Desktop\exam review\review 1.py", line 89, in main
endBalance = begBalance - totalWithdrawals + totalDeposits
TypeError: unsupported operand type(s) for +: 'float' and 'str'

代码如下：

^{pr2}$

因此，在我有限的编程知识的情况下，我尝试了以下方法使所有内容都变为float（我已经将deposit1 deposit2 deposit3和with1 with2 with3变成float，所以当它们被添加时，totalDeposits和totaldrafts本身是否会变成float，从而使以下内容变得多余？）在

'#Calculate totalDeposits
totalDeposits = deposit1 + deposit2 + deposit3
totalDeposits = float(totalDeposits)

#Calculate totalWithdrawals
totalWithdrawals = with1 + with2 + with3
totalWithdrawals = float(totalWithdrawals)

#Calculate endBalance
endBalance = begBalance - totalWithdrawals + totalDeposits
endBalance = float(endBalance)    '

然后我得到这个错误

Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
    main()
  File "C:\Users\\Desktop\exam review\review 1.py", line 82, in main
    totalDeposits = float(totalDeposits)
ValueError: could not convert string to float: '200.56234.56352.35\n'

这些是readin第4行的值。。所以我被困了，不知道还能做什么，谢谢大家的帮助。在

Answer 1

你会的

depoit1 = float(deposit1)

然后把deposit1当作一个浮点数使用。注意输入错误，depoit1<；>；deposit1

Answer 2

错误很明显，您试图将字符串添加到浮点： '200.56234.56352.35\n'