在python中的2D列表中搜索出现的事件

Question

我有2D列表，并且试图在列表中查找单词“ the”的出现。

我正在自学python，请尝试以下代码

data = [["the cat is fed", "the bar is barred", "cat is now a bar"],
        ["the cat was fed", "the bar was barred", "cat was now a bar"]]

whatIsTheSum = sum('the' in s for s in data)

print(whatIsTheSum)

我期望结果为4，但程序返回0。

Answer 1

因为您没有遍历嵌套数组

ENDIF

Answer 2

查找两个不同数组的元素。试试这个：

whatIsTheSum = sum('the' in s for s in data[0]+data[1])
print(whatIsTheSum)