正则表达式的写法。 string a = "||aa:123||bb:222||cc:33"; string xx = "aa"; a+= "||"; string pattern = @"[\s\S]*?\|\|"+xx+@"\:([\s\S]*?)\|\|[\S\s]*"; string res = a; Match m = Regex.Match(a,pattern); if(m.Success) { a = m.Groups[1].Value; } MessageBox.Show(a);
public string getValue(string ze)
{
string old="||aa:123||bb:222||cc:33||dd:4567";
string result="";
string b="",c="";
int len=old.IndexOf(ze);
for(int a=2;a<old.Length;a++)
{
b=old.Substring(a,1);
if(b.Equals(":"))
{
if(c.Equals(ze))
{
c="";
for(int bb=a+1;bb<old.Length;bb++)
{
b=old.Substring(bb,1);
if(b.Equals("|"))
{return c;}
else{c=c+b;}
}
return c;
}
}
else if(b.Equals("|"))
{c="";}
else
{c=c+b;}
}
return result;
}
给分啊!
string aa=getValue("aa")
string xx = "aa";
a+= "||";
string pattern = @"[\s\S]*?\|\|"+xx+@"\:([\s\S]*?)\|\|[\S\s]*"; string res = a;
Match m = Regex.Match(a,pattern);
if(m.Success)
{
a = m.Groups[1].Value;
}
MessageBox.Show(a);