C# 如何使用 Regex.Replace 一次替换两个字符串？
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How to use Regex.Replace to Replace Two Strings at Once?
提问by
I have the following method that is replacing a "pound" sign from the file name but I want also to be able to replace the "single apostrophe ' " at the same time. How can I do it? This is the value of filename =Provider license_A'R_Ab#acus Settlements_1-11-09.xls
我有以下方法可以替换文件名中的“井号”符号，但我也希望能够同时替换“单撇号 '”。我该怎么做？这是 filename =Provider license_A'R_Ab#acus Settlements_1-11-09.xls 的值
static string removeBadCharPound(string filename)
{ // Replace invalid characters with "_" char.
//I want something like this but is NOT working
//return Regex.Replace(filename, "# ' ", "_");
return Regex.Replace(filename, "#", "_");
}
采纳答案by Jon Skeet
Try
尝试
return Regex.Replace(filename, "[#']", "_");
Mind you, I'm not sure that a regex is likely to be faster than the somewhat simpler:
请注意，我不确定正则表达式可能比更简单的更快：
return filename.Replace('#', '_')
.Replace('\'', '_');
回答by Judah Gabriel Himango
And just for fun, you can accomplish the same thing with LINQ:
只是为了好玩，你可以用 LINQ 完成同样的事情：
var result = from c in fileName
select (c == '\'' || c == '#') ? '_' : c;
return new string(result.ToArray());
Or, compressed to a sexy one-liner:
或者，压缩成性感的单线：
return new string(fileName.Select(c => c == '\'' || c == '#' ? '_' : c).ToArray())
