c# - 向字符串添加回车符

Question

我有一个长字符串。

string s1 = "'99024','99050','99070','99143','99173','99191','99201','99202','99203','99204','99211','99212','99213','99214','99215','99217','99218','99219','99221','99222','99231','99232','99238','99239','99356','99357','99371','99374','99381','99382','99383','99384','99385','99386','99391','99392'";

我要

string s2 = 
            "'99024',
             '99050',
             '99070',
             '99143',
             '99173',
             '99191',
             '99201',
             '99202',....";

换句话说。也许它喜欢:

string s2 = "'99024',"+'\n'+"'99050',"+'\n'+"'99070',"+'\n'+"'99143',"+'\n'+.....;

我需要一个简洁的代码。也许林克。谢谢。

Answer 1

string s2 = s1.Replace(",", "," + Environment.NewLine);

---

此外，仅从性能的角度来看，以下是我所见过的三个当前解决方案如何叠加超过 100k 次迭代:

ReplaceWithConstant           - Ms: 328, Ticks: 810908
ReplaceWithEnvironmentNewLine - Ms: 310, Ticks: 766955 
SplitJoin                     - Ms: 483, Ticks: 1192545

ReplaceWithConstant:

string s2 = s1.Replace(",", ",\n");

ReplaceWithEnvironmentNewLine:

string s2 = s1.Replace(",", "," + Environment.NewLine);

拆分连接:

string s2 = String.Join("," + Environment.NewLine, s1.Split(','));

ReplaceWithEnvironmentNewLine 和 ReplaceWithConstant 在彼此的误差范围内，因此在功能上没有区别。

为了可读性和一致性，使用 Environment.NewLine 应该优于 "\n"，类似于使用 String.Empty 而不是“”。