貌似简单的字符串截取

[FlowerJunjie]

//WebSplitter2_tmpl1_ctl08_id_sqlm_choose_00548(20092)_0
//WebSplitter2_tmpl1_ctl20_id_crhimxlz_crhimxllunwenxa_00018(20094)
//WebSplitter2_tmpl1_ctl202_id_ehaz20086_eharead_001(200811)_*003
//WebSplitter2_tmpl1_ctl06_id_sqlm_choose_01806(20092)_*001_1
//WebSplitter2_tmpl1_ctl11_id_sqlm_choose_00551(20092)_3

如果最后两位 是 _0 或是_1 或是_2............_5,则去掉最后两位

[FlowerJunjie]

恩，也可以判断倒数第二位是否为“_”

[HDNGO]

string s = "WebSplitter2_tmpl1_ctl06_id_sqlm_choose_01806(20092)_*001_1";
Regex reg = new Regex(@"_[0-5]$");
if (reg.IsMatch(s))
{
    s = s.Substring(0, s.Length - 2);
    Console.WriteLine(s);
}

[昕颖]

[Quote=引用 2 楼 HDNGO 的回复:]
C# codestring s = "WebSplitter2_tmpl1_ctl06_id_sqlm_choose_01806(20092)_*001_1";
Regex reg = new Regex(@"_[0-5]$");
if (reg.IsMatch(s))
{
s = s.Substring(0, s.Length - 2);
Console.WriteLine(s);
}
[/Quote]
顶起

[jueyingfd]

string s = "WebSplitter2_tmpl1_ctl06_id_sqlm_choose_01806(20092)_*001_1";
Regex reg = new Regex(@"_[0-5]$");
if (reg.IsMatch(s))
{
    s = s.Substring(0, s.Length - 2);
    Console.WriteLine(s);
}

正解！！！！！！！！！！！！

[我姓区不姓区]

[Quote=引用 1 楼 FlowerJunjie 的回复:]
恩，也可以判断倒数第二位是否为“_”
[/Quote]

if(str[str.Length - 2] == '_')
{
    //to do..
}

[will_g]

string s= "WebSplitter2_tmpl1_ctl08_id_sqlm_choose_00548(20092)_0 ";
string subs=s.SubString(s.Length-3,s.Length-1);
if(subs=="_0"||subs=="_1"||subs=="_2"||subs=="_3"||subs=="_4"||subs=="_5")
    s=s.Remove(s.Length-3,2);

[myouuu]

[Quote=引用 5 楼 ojlovecd 的回复:]
引用 1 楼 FlowerJunjie 的回复:
恩，也可以判断倒数第二位是否为“_”



C# code
if(str[str.Length - 2] == '_')
{
//to do..
}
[/Quote]

good

[newdigitime]

用正则是好办法,它能限制到_1 ...._5,而不限制_6