VB.net 正则表达式--将多个连续空格替换为一个空格的正则表达式
Dim reg As Regex
Dim striniData As String = "a b c d"
Dim sectionList As System.Text.RegularExpressions.MatchCollection
Try
'' Using regular expression to get all section names.
reg = New Regex(":%s/*//g")
sectionList = reg.Matches(striniData)
MsgBox(sectionList.count)
Catch ex As Exception
Throw ex
End Try
程序不报错，当没有结果。请指教一下。辛苦了。
问题点数：10、回复次数：8Top
1 楼sswater（光杆兵）回复于 2006-03-05 10:07:07 得分 0
New Regex("[\x20 ]", g)
更多语法，推荐参考：
http://www.regexlab.com/zh/regref.htm
Top
2 楼zhaojie513（赵杰）回复于 2006-03-05 10:30:59 得分 0
New Regex("[\x20 ]", g)
能不能写个例子啊。我不是很明白，，辛苦了。Top
3 楼sswater（光杆兵）回复于 2006-03-06 10:02:10 得分 0
reg = New Regex("[\x20 ]{2,}");
striniData = reg.Replace(striniData, " ");
--- 或者 ---
striniData = Regex.Replace(striniData, "[\x20 ]{2,}", " ");
正则表达式语法帮助，参见：
http://www.regexlab.com/zh/regref.htm
Top
4 楼sz_lgp（longguoping）回复于 2006-03-06 10:34:24 得分 0
简单点：
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
.......Top
5 楼icake（蛋糕）回复于 2006-03-06 14:52:17 得分 0
我有个笨办法， 写个死循环，如果有两个空格就换成一个空格，直到不再有2个空格。那也就只剩下一个空格了。Top
6 楼yangjk（cdfhfdh）回复于 2006-06-26 14:57:21 得分 0
string msg="1 2 3 4 5 6"
msg=Regex.Replace (msg, " +"," ");
结果:
msg=="1 2 3 4 5 6"Top
7 楼smpoy（心动不如行动）回复于 2006-06-26 19:35:58 得分 0
sz_lgp(longguoping) 有点不智能，但这个方法很好
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")
string_xx=string_xx.replace(" "," ")Top
8 楼smpoy（心动不如行动）回复于 2006-06-26 19:37:41 得分 0
string msg="1 2 3 4 5 6"
msg=Regex.Replace (msg, " +"," ");
结果:
msg=="1 2 3 4 5 6"
没测试，但是msg会不会 = “1+2+3++4+5+++6”啊Top
