a = map(float, input().split()) b = map(float, input().split()) print(sum( ))
时间: 2023-11-22 13:04:34 浏览: 77
这段代码有错误,因为在 print(sum( )) 中没有传入要求求和的可迭代对象。正确的代码应该是:
```
a = map(float, input().split())
b = map(float, input().split())
print(sum(a) + sum(b))
```
这样才能对输入的两个列表进行求和并输出结果。
相关问题
a = map(float, input().split()) b = map(float, input().split()) print(sum( )) 改正sum中的内容,不变a和b
您需要将两个 map 对象中的元素逐个相加,并对结果进行四舍五入,可以使用以下代码:
```
a = map(float, input().split())
b = map(float, input().split())
print(round(sum(a) + sum(b), 2))
```
这里使用 `sum()` 函数计算两个 map 对象中的元素之和,然后使用 `round()` 函数对结果进行四舍五入并保留两位小数。
map(float, input().split())
This line of code takes input from the user in the form of space-separated values and converts them into floating-point numbers using the built-in function `map()`.
The `map()` function takes two arguments: the first argument is a function (in this case `float`) that will be applied to each element in the second argument, which is an iterable (in this case the user input that has been split into a list). The function returns an iterator that can be converted into a list or used in a loop.
So, if the user enters something like "3.14 2.718 1.618", the code will convert each of those values to a float and return an iterator that can be used to access those values. For example:
```
>>> values = map(float, input().split())
3.14 2.718 1.618
>>> print(list(values))
[3.14, 2.718, 1.618]
```
This could be useful for processing numerical input from the user, such as in a scientific computing or data analysis application.