请教一个匹配替换的问题？

[maotin]

"Left join Customer
On .....
Left join CustomerAddress
On ..... "
请问我如何替换成：
" Customer
On .....
Left join CustomerAddress
On ..... "
谢谢。

[maotin]

顶

[covis]

这是字符串还是什么？

[maotin]

是字符串

[maotin]

这是我的做法，我觉得太复杂了，有没有更好的？谢谢

MatchCollection regexForConvert = Regex.Matches( oldText, @"\bleft\b\s+\bjoin\b\s+(?<name>\w+)", RegexOptions.IgnoreCase );
foreach( Match subString in regexForConvert )
{
String name = subString.Groups["name"].ToString().ToUpper();

int index = oldText.IndexOf( subString.Value.ToUpper() );

int keyLength = index + subString.Value.ToUpper().Length;
int textLength = oldText.Length - keyLength;


if( index > 0 )
newText += oldText.Substring(0, index);

newText += " " + name + ",";

newText += oldText.Substring(keyLength, textLength);

}

[ArLi2003]

string s = "Left join Customer On ..... Left join CustomerAddress On ..... ";
if (s.ToLower().StartsWith("left")) s = s.Remove(0,9);

[maotin]

主要是left join customer,我直接匹配是用这样：
text ＝ text.Replace( "left join customer", ",customer" ),
但是把"left join customerAddress" 也替换了，
请教有么比较通用的替换法，

[brightheroes]

我觉得还是用ArLi2003的办法吧

[liduke]

ArLi2003的办法我觉得最简单了

[wzs_wzs123]

string strContent="Left join Customer On ..... Left join CustomerAddress On .....Left join Customer On ";

strContent=Regex.Replace(strContent,
@"\bleft\b\s+\bjoin\b\s+\bcustomer\b",
"Customer",RegexOptions.IgnoreCase);
MessageBox.Show(strContent);