以下关于字符串的叙述中，正确的是（ ）。
- A.包含任意个空格字符的字符串称为空串
- B.字符串不是线性数据结构
- C.字符串的长度是指串中所含字符的个数
- D.字符串的长度是指串中所含非空格字符的个数
正确答案及解析
正确答案
解析
空格也是一个字符，所以包含空格的字符串不能称为空串，所以字符串的长度是指字符串所有字符个数的总和（包括空格）；字符串是线性结构。
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