我正在尝试创建一个程序,让用户从给定的句子中输入一个单词,我的代码会给他们这个单词的位置。例如,如果用户输入单词"pizza",我的程序应该输出"4th position"作为响应。我是python的新手,所以非常感谢所有的帮助!到目前为止我所拥有的:
food = "i love Italian pizza"
food2 = food.split()
for x in list(food2)
您想要的是list.index()
food = "i love Italian pizza"
food2 = food.split()
index = food2.index("Italian")
print str(index + 1) + " position"
将带有用户输入的变量放在"意大利语"所在的位置。
用于用户输入:
try:
c = raw_input('Enter Word: ')
index = food2.index(c)
print str(index + 1) + " position"
except ValueError as E:
print "Not in list"
您就快到了。使用您现有的代码,您可以这样做:
# Query the user:
word = str(raw_input("Enter Word: "))
food = "i love Italian pizza"
food2 = food.split()
for (num, x) in enumerate(list(food2)):
if word == x:
print num
其中:
- enumerate将列表转换为元组(0,"i"),(1,"love"),"2,"Italian"),(3,"pizza")
try:
food = "i love Italian pizza"
print food.split().index("pizza") + 1
您需要这样写:
def test():
words = 'i love Italian pizza'.split()
word = str(raw_input())
if word in words:
print 'position = ', words.index(word)+1
else:
print 'word not found'