Python之list对应元素求和

def list_add(a,b):
    c = []
    for i in range(len(a)):
        c.append(a[i]+b[i])
    return c

if __name__ == '__main__':
    a = [1,2,3]
    b = [2,3,4]
    c = [3,4,5]
    print(list_add(list_add(a,b),c))

import numpy as np
a = np.array([1,2,3])
b = np.array([2,3,4])
c = np.array([3,4,5])
print(a+b+c)

import numpy as np
a = [1,2,3]
b = [2,3,4]
c = [3,4,5]
print(np.sum([a,b,c], axis = 0))