擅长:python、mysql、java
<p>是你的功能出了问题。我只是把它修好</p>
<pre><code>def lettercount(sentence, letter):
count = 0
sentencecounter = 0
for i in sentence:
if i == letter:
print(i)
count += 1
else:
pass
sentencecounter += 1
print(count)
userstr = input("What is your sentence? ")
userletter = str(input("What is your letter? "))
lettercount(userstr, userletter)
</code></pre>