C#几种截取字符串的方法小结

string st="GT123_1";

string[] sArray=st.split("_");

string str = "GTAZB_JiangjBen_123";
string[] sArray = str.Split(new char[2] { 'j', '_' });
foreach(string e in sArray)
{
Console.WriteLine(e);
}

string str = "GTAZB_JiangjBen_123";
string[] sArray = str.Split( new string[]{"Ji","jB"}, StringSplitOptions.RemoveEmptyEntries);
foreach(string e in sArray)
{
Console.WriteLine(e);
}

string str = "GTAZB_JiangjBen_123";
int start=3,length=8;
Console.WriteLine(str.Substring(start-1, length));

string str = "GTAZB_JiangjBen_123";
string tSt;
int i=5;
tSt = str.Substring(str.Length - i);
Console.WriteLine(tSt);

string str = "GTAZB_JiangjBen_123";
string tSt;
tSt = str.Replace("123","321");
Console.WriteLine(tSt);

string str = "GTAZB_JiangjBen_123";
string tSt;
tSt = str.Replace("Jiangj","");
Console.WriteLine(tSt);

 string str = "GTAZB_JiangjBen_123";

int i=5,length=8;

str=str.remove(i,length);

console.writeline(str);