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1·In the sequence above, the variable var is set to the two-letter string ls.

在上面的命令序列中，把变量var设置为两字母的字符串ls。

2·Before I can get to the mapping part of the solution, you need to understand how a simple three-letter string like DEN gets converted to a point on a map.

在讨论该解决方案的地图绘制部分之前，您需要了解如何将一个简单的三个字母的字符串(如den)转换为地图上的一点。

3·Iso3166-country-code.xsd: the ISO3166CountyCode type both constrains the data to be a two-letter string and requires it to be one of the actual iso 3166-1 country codes.

iso 3166 - country - code . xsd： iso 3166 CountyCode类型约束数据为两个字母的字符串并且要求其必须为一个实际的iso 3166 - 1国家区号。

4·For each character in the first string, any letter that appears in the second string is replaced by the corresponding letter from the third-string.

对于第一个字符串中的每个字符，第二个字符串中的任意一个字符都由第三个字符串中相应的字母所替代。

5·The short form string should include each valid option letter, followed by a colon (:) to indicate that the command line option should be followed by a value.

短形式字符串应该包含每个有效的选项字母，每个字母后面是一个冒号 (:)，这表示命令行选项后面应该是一个值。

6·If the index of the current letter is equal to the length of the string, this variable is an empty string.

如果当前字母的下标和字符串的长度相等，那么这个变量是一个空字符串。

7·A user name is a string beginning with a letter followed by at least two, but not more than seven letters or Numbers followed by the end of the string.

用户名是以字母开头，后面紧跟至少两个，但不超过七个字母或数字的字符串，并且紧跟字符串结尾。

8·If the index of the current letter is less than the length of the string, you invoke your named template again, passing the original string and incrementing the index by 1.

如果当前字母的下标小于字符串的长度，则再次调用已命名的模板，传递原始字符串并把下标加1。

9·If you omit it, your regex would match any string that begins with a letter, contains two to nine alphanumeric characters, and any number of any other characters.

如果忽略掉它，regex将匹配开头为字母、包含2至9个字母数字字符以及任意数目的任何其他字符的所有字符串。

10·Each string passed to mkpasswd is built level by level from a single key dwell time all the way up to a dwell time for each recorded letter in the user name.

传递给mkpasswd的每个字符串都是从单个按键停顿时间一直到用户名中每个记录字母的停顿时间逐级构建的。