c#字符串截取问题

[ansontang]

急!我想把一个字符串截取成指定长度,要怎么做?

[ZengHD]

"12345".Substring(

[qfgyd2004]

//str要截断的字符串
//len截取的长度
        public string subString(string str, int len)
        {
            if (str.Length > len)
                return str.Substring(0, len);
            else return str;
        }

[hackztx]

 static string GetSubString(string str,int length)
    {
        if (str.Length > length)
        {
            return str.Substring(0,length);
        }
        return str;
    }

[stromboy007]

public string SubStr(string sString, int nLeng)
{
if (sString.Length <= nLeng)
{
return sString;
}
string sNewStr = sString.Substring(0, nLeng - 2);
sNewStr = sNewStr + "...";
return sNewStr;
}

<asp:Label ID="Label1" runat="server" Text='<%# SubStr(DataBinder.Eval(Container.DataItem,"title").ToString(),16) %>'> </asp:Label>

[twtqing]

public string subString(string str, int len)
{
if (str.Length > len)
return str.Substring(0, len);
else return str;
}

[wangfeng8317]

用subString()