c# 中如何替换换行符

Question

c#中如何替换换行符stringstrpageContent=strpageContent.Replace("\r\n","");这种方式好像无法正确替换

Answer 1

替换固定字符没必要用正则表达式，效率差。
stringstr="line1\r\nline2\nline3\r";
str=str.Replace(System.Environment.NewLine,"");//OK
str=str.Replace("\r","").Replace("\n","");//也OK
                            

Answer 2

stringpattern=@"\r*\n";
Regexrgx=newRegex(pattern);
stringoutputStr=rgx.Replace(strpageContent,"");