list.insert如果提示允許用戶將多個專案添加到串列中，我無法弄清楚如何建立索引。我需要在"and"列出的最后一項之前添加。
listToPrint = []
while True:
newWord = input("Enter a word to add to the list (press return to stop adding words) > ")
if newWord == "":
break
else:
listToPrint.append(newWord)
print(listToPrint)
uj5u.com熱心網友回復：
正如@christiandean 在評論中建議的那樣，這就是你所追求的：
listToPrint = []
while True:
newWord = input("Enter a word to add to the list (press return to stop adding words) > ")
if newWord == "":
break
else:
listToPrint.append(newWord)
listToPrint.insert(len(listToPrint)-1, "and")
print(listToPrint)
但是，如果沒有輸入任何單詞，則會失敗，所以這樣更安全：
listToPrint = []
while True:
newWord = input("Enter a word to add to the list (press return to stop adding words) > ")
if newWord == "":
break
else:
listToPrint.append(newWord)
if len(listToPrint) > 1:
listToPrint.insert(len(listToPrint)-1, "and")
print(listToPrint)
輸出：
Enter a word to add to the list (press return to stop adding words) > this
Enter a word to add to the list (press return to stop adding words) > that
Enter a word to add to the list (press return to stop adding words) > more
Enter a word to add to the list (press return to stop adding words) >
['this', 'that', 'and', 'more']
uj5u.com熱心網友回復：
我希望我能正確理解這個問題。如果沒有，請原諒我。所以，[-1] 將索引序列的最后一個元素，我相信。因此 [-2] 將指示倒數第二個元素。
uj5u.com熱心網友回復：
本質上，這應該使用：
listLen = len(listToPrint)
if listLen > 1:
listToPrint.insert(listLen - 1, "and")
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