如何获取向量中最小元素的索引？

def find_minimum_index(vector):
    min_index = 0
    for i in range(1, len(vector)):
        if vector[i] < vector[min_index]:
            min_index = i
    return min_index

def find_minimum_index(vector):
    min_value = min(vector)
    min_index = vector.index(min_value)
    return min_index

import numpy as np

def find_minimum_index(vector):
    min_index = np.argmin(vector)
    return min_index