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C++程序设计语言(第4部分:标准库)(原书第4版)
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C++程序设计语言(第4部分:标准库)(原书第4版)

by 本贾尼 斯特劳斯特鲁普
August 2021
Intermediate to advanced
450 pages
6h 57m
Chinese
Pearson
Content preview from C++程序设计语言(第4部分:标准库)(原书第4版)

37.6 建议

[1]将regex用于正则表达式的大部分常规用途;37.1节。

[2]我们可以调整正则表达式符号表示,来适应不同的标准;37.1.1节,37.2节。

[3]默认正则表达式符号表示为ECMAScript;37.1.1节。

[4]出于可移植性考虑,使用字符类别符号表示来避免非标准的简写;37.1.1节。

[5]使用正则表达式要注意节制,它很容易变成一种难读的语言;37.1.1节。

[6]优先选择裸字符串字面常量描述模式(最简单的模式除外);37.1.1节。

[7]注意,\i符号允许你用之前的子模式来描述后面的一个子模式;37.1.1节。

[8]用?令模式的匹配采用“懒惰”策略;37.1.1节,37.2.1节。

[9]regex可以使用ECMAScript、POSIX、awk、grep和egrep符号表示;37.2节。

[10]保存模式字符串的一份副本,以备你需要输出它时使用;37.2节。

[11]用regex_search()在字符流中查找模式,用regex_match()查找特定字符串;37.3.2节,37.3.1节。

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Publisher Resources

ISBN: 9787111544395