2) character-string expressions
字符串表达式
1.
XPath based on the character-string expressions can locate a position of XML data with high efficiency,offering elastic choices of documents’ components and discussing the query of XML data through XPath.
基于字符串表达式的XPath路径语言可以非常高效的定位到XML数据中的指定位置,从而灵活的选择文档的组成成份。
3) character or expression depth
字符或表达式深度
4) character or expression width
字符或表达式宽度
5) character expression
字符表式
6) symbol expression
符号表达式
1.
It has many excellent characteristics such as having the test problems well distributed constituting a test paper, most problems having complete answer and relative review contents, being able to check the answers of symbol expressions, as well as being open.
具有组卷试题分布均匀、大多数题目均有完整解答和相关的复习内容、可以评判符号表达式答案、开放性和界面友好性等特点。
补充资料：字符串
简称“串”。有限字符的序列。数据元素为字符的线性表，是一种数据的逻辑结构。在计算机中可有不同的存储结构。在串上可进行求子串、插入字符、删除字符、置换字符等运算。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条