擅长:python、mysql、java
<p>在这里,循环要容易得多:</p>
<pre><code>text = "sandwich"
inp = input("Enter word")
# a range from zero to the length of the shortest string
# (if one string is longer than the other, we want the length of the shortest
# one so that it doesn't try to check characters that don't exist)
for i in range(min(len(text), len(inp))):
# print if corresponding characters match
if inp[i] == text[i]:
print(text[i])
</code></pre>