The character class name for alphabetic characters.
表示字母字符的字符分类名称。
Enter a character: 2the character is not an alphabetic character.
如果输入的字符是字母，则程序检查是大写还是小写。
The first character of the string must be an alphabetic character.
字串的第一个字元必须是字母字元。
Names must begin with an alphabetic character, not a number or symbol.
名称只能以英文字母开始，不能是数字或符号。
A coded character set whose character set is an alphabetic character set.
一种编码字符集，它的字符集是一种字母字符集。
The first character of the name must be alphabetic.
名的首字符必须是字母。
The first character of the name must be alphabetic.
名的首字符必须是字母。
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