任何帮助，我需要输入一个带有负号的数字列表，python 3

Question

我尝试了此操作，但它给了我这个错误：（SyntaxError：扩展分配的非法表达式）

输入将是这样的：-2 4 -1

    x_forces, y_forces, z_forces = 0
    x_forces, y_forces, z_forces += map(int, input().split(' '))

Answer 1

这是您要寻找的吗？

x_forces, y_forces, z_forces = 0, 0, 0
n = [i for i in map(int, input().split(' '))]

x_forces += n[0]
y_forces += n[1]
z_forces += n[2]

print(x_forces, y_forces, z_forces)