获取一个未编码的文本样例，计算文本中出现特定字母的次数，然后按频率最高到最低的顺序给字母排序。
Take a sample of unencoded text, count how many times specific letters appear in the text, and sort the letters in order from most to least frequent.
值lc_ctype定义了字符编码，而LC _ COLLATE定义了排序顺序。
The LC_CTYPE value defines character encoding and LC_COLLATE defines the sorting order.
清单21中的例子创建了一个根据名称对结果进行排序的查询，然后编辑该查询以根据邮政编码进行查询。
The example in Listing 21 creates a query that orders its result by name and then edits the query to order also by ZIP code.
应用推荐