擅长:python、mysql、java
<pre><code>>>> s = "abbcddeeffffcccddddggggghhhiaajjjkk"
>>> for x in sorted(set(s)):
... i = 1;
... while x * i in s:
... i += 1
... print x, "-", i - 1
...
a - 2
b - 2
c - 3
d - 4
e - 2
f - 4
g - 5
h - 3
i - 1
j - 3
k - 2
</code></pre>