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正则表达式（C＃）：用\ r \ n替换\ n(Regex (C#): Replace \n with \r\n)

 如何使用C＃中的正则表达式将\ n的单独实例替换为\ r \ n（仅LF与CRLF）？  
 对不起，如果这是一个愚蠢的问题，我是新来的正则表达式。  
 我知道要使用计划String.Replace来做，如：  
myStr.Replace("\n", "\r\n");
myStr.Replace("\r\r\n", "\r\n");
 
 然而，这是不雅的，并且会破坏文本中的任何“\ r + \ r \ n”（尽管它们不可能存在）。 

How can I replace lone instances of \n with \r\n (LF alone with CRLF) using a regular expression in C#? 
Sorry if it's a stupid question, I'm new to Regex. 
I know to do it using plan String.Replace, like: 
myStr.Replace("\n", "\r\n");
myStr.Replace("\r\r\n", "\r\n");
 
However, this is inelegant, and would destroy any "\r+\r\n" already in the text (although they are not likely to exist).

原文：https://stackoverflow.com/questions/31053

更新时间：2023-08-21 14:08

最满意答案

 我们很难描述一个通用的策略来调试“很多错误”，所以我将引导您完成调试组件级错误的过程：  
 
  为您所选择的浏览器安装React开发工具扩展：  
   
    铬  
    火狐  
   
  找到组件 
 我推荐以下任一路径： 
 2.A. 从浏览器开发工具中打开“ React tab ，然后键入底部搜索栏以按名称查找组件。 
 2.B. 打开Elements tab ，选择一些元素，然后切换回React 。 组件层次结构将被展开，直到React组件匹配您在Elements选择的DOM节点。  
  检查行为不正确的组件的状态和道具。  
 
 如果由于某种原因你不喜欢安装浏览器扩展，你可以抛出一个或多个debugger; 语句来设置将“暂停”应用程序执行的断点，并让您检查这些点的调用堆栈，范围和错误。 

It's difficult to describe a general strategy to debug "a lot error shown up" so I will walk you through the process for debugging component level errors: 
 
 Install the React dev tools extension for your browser of choice: 
   
   Chrome 
   Firefox 
   
 Find the component
 I recommend either of these paths:
 2.a. Open React tab from your browser dev tools and type in the bottom search bar to lookup components by name.
 2.b. Open Elements tab, select some element, and switch back to React. The component hierarchy will be expanded up until the React component matching the DOM node you selected in Elements. 
 Inspect the state and props of the component that is behaving incorrectly. 
 
If for some reason you don't like installing browser extensions, you can throw one or more debugger; statements to set breakpoints that will "pause" the execution of your app and let you inspect the call stack, scope, and errors at these points.

正则表达式（C＃）：用\ r \ n替换\ n(Regex (C#): Replace \n with \r\n)

最满意答案

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