列表上的Python无限循环

Question

我确信这是一个非常明显的东西，我错过了，但有人可以告诉我为什么这段代码片段会在无限循环中继续吗？

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket,keyword):
    index = 0
    for e in bucket:
        while e[0] <> keyword:
            index = index + 1
    return index


print find_index(bucket,'Nick')

Answer 1

这个怎么样？
两个for循环可以防止循环无限运行。

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket, keyword):
    for index, subArray in enumerate(bucket):
        for element in subArray:
            if element == keyword:
                return index

print find_index(bucket, 'Nick')

Answer 2

怎么样？

bucket = [['Louis', 29], ['Nick', 2], ['Rochelle', 4]]

def find_index(bucket,keyword):
    index = 0
    for e in bucket:
        while e[index] <> keyword:
            index = index + 1
    return index


print find_index(bucket,'Nick')

您使用了e[0]代替e[index]。