从字符串C＃中删除特定字符

Question

I have got a string ["foo","bar","buzz"] from view, i want to remove [ , " &, ]
I have used string x = tags.Trim(new Char[] { '[', '"', ']' }); but the output i got is foo","bar","buzz instead of foo,bar,buzz

I have tried Trimming & this but still having problem.

Answer 1

As alternative, you can use a "simple" Replace

string x = tags.Replace("[","")
               .Replace("\"","")
               .Replace("]","");

It isn't fast, but it's simple.

If you need more performance you should use an alternative.

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please note: that each Replace call returns a new string, and with every call the whole string is reevaluated. Although I often use this myself (due to the readability) it's not recommended for complex patterns or very long string values

Answer 2

正则表达式的力量！

var x = Regex.Replace(tags, @"(\[|""|\])", "");

Answer 3

Personally, I'd switch your order of operations. For instance

String[] unformattedTags = tags.Split(',');
String[] formattedTags = unformattedTags.Select(itm => itm.Trim( '[','"',']')).ToArray();

This removes the restricted characters from each tag individually.