但是，由于它可以包含字母数字字符，因此它不适于与Sphinx结合使用，Sphinx要求索引的每条记录都有一个惟一的32位整型键。

However, because it can contain alphanumeric characters, it's inappropriate for use with Sphinx, which requires each record indexed to have a unique 32-bit integer key.

youdao

然后你把每个字母转换成一个数字（用内置的ord 函数），用这些数字作为这个列表的索引，然后累加相应的计数器。

Then you could convert each character to a number (using the built-in function ord), use the number as an index into the list, and increment the appropriate counter.

youdao