python - 如何在 Python 中从左到右进行线性搜索？

Question

有没有办法进行线性搜索，从列表的左到右搜索，直到它们收敛并找到正在搜索的键？

def linear_search(alist,key):
    for i in range(len(alist)):
        if alist[i] == key:
            return i
    return -1



alist = input('Enter the list of numbers: ')
alist = alist.split()
alist = [int(x) for x in alist]

while True:
    key = int(input("The number to search for: "))

    index = linear_search(alist, key)

    if index >= 0:
        print(f"{key} was found at index {index}.")
    else:
        print(f'{key} was not found.')

标签： python

Answer 1

您可以使用以下方法更改范围函数以从右到左返回索引：

for i in range(len(alist)-1,-1,-1):
    # your logic