C# 从 .NET 中的字符串中去除双引号
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Strip double quotes from a string in .NET
提问by Even Mien
I'm trying to match on some inconsistently formatted HTML and need to strip out some double quotes.
我试图匹配一些格式不一致的 HTML，需要去掉一些双引号。
Current:
当前的：
<input type="hidden">
The Goal:
目标：
<input type=hidden>
This is wrong because I'm not escaping it properly:
这是错误的，因为我没有正确地逃避它：
s = s.Replace(""","");
s = s.Replace(""","");
This is wrong because there is not blank character character (to my knowledge):
这是错误的，因为没有空白字符（据我所知）：
s = s.Replace('"', '');
What is syntax / escape character combination for replacing double quotes with an empty string?
什么是用空字符串替换双引号的语法/转义字符组合？
采纳答案by Joey
I think your first line would actually work but I think you need four quotation marks for a string containing a single one (in VB at least):
我认为您的第一行实际上可以工作，但我认为包含单个字符串的字符串需要四个引号（至少在 VB 中）：
s = s.Replace("""", "")
for C# you'd have to escape the quotation mark using a backslash:
对于 C#，您必须使用反斜杠转义引号：
s = s.Replace("\"", "");
回答by David
s = s.Replace("\"", "");
You need to use the \ to escape the double quote character in a string.
您需要使用 \ 来转义字符串中的双引号字符。
回答by Jake Pearson
You have to escape the double quote with a backslash.
你必须用反斜杠转义双引号。
s = s.Replace("\"","");
回答by Steve Gilham
s = s.Replace("\"",string.Empty);
回答by Fredrik M?rk
You can use either of these:
您可以使用以下任一方法：
s = s.Replace(@"""","");
s = s.Replace("\"","");
...but I do get curious as to why you would want to do that? I thought it was good practice to keep attribute values quoted?
......但我确实很好奇你为什么要这样做？我认为引用属性值是一种好习惯？
回答by svinto
c#: "\"", thus s.Replace("\"", "")
c#: "\""，因此s.Replace("\"", "")
vb/vbs/vb.net: ""thus s.Replace("""", "")
vb/vbs/vb.net：""因此s.Replace("""", "")
回答by Mike
s = s.Replace( """", "" )
Two quotes next to each other will function as the intended " character when inside a string.
当在字符串中时，两个相邻的引号将用作预期的 " 字符。
回答by gHeidenreich
s = s.Replace(@"""", "");
s = s.Replace(@"""", "");
回答by user3519062
This worked for me
这对我有用
//Sentence has quotes
string nameSentence = "Take my name \"Wesley\" out of quotes";
//Get the index before the quotes`enter code here`
int begin = nameSentence.LastIndexOf("name") + "name".Length;
//Get the index after the quotes
int end = nameSentence.LastIndexOf("out");
//Get the part of the string with its quotes
string name = nameSentence.Substring(begin, end - begin);
//Remove its quotes
string newName = name.Replace("\"", "");
//Replace new name (without quotes) within original sentence
string updatedNameSentence = nameSentence.Replace(name, newName);
//Returns "Take my name Wesley out of quotes"
return updatedNameSentence;
回答by Shane
I didn't see my thoughts repeated already, so I will suggest that you look at string.Trimin the Microsoft documentation for C# you can add a character to be trimmed instead of simply trimming empty spaces:
我没有看到我的想法已经重复了，所以我建议您查看string.TrimMicrosoft 的 C# 文档，您可以添加要修剪的字符，而不是简单地修剪空格：
string withQuotes = "\"hellow\"";
string withOutQotes = withQuotes.Trim('"');
should result in withOutQuotes being "hello"instead of ""hello""
应该导致 withOutQuotes"hello"代替""hello""
