1、使用TrimEnd,public string TrimEnd(params char[] trimChars);参数为字符数组
string str = "abcde";
str = str.TrimEnd('e');
string s = " from table union all ";
s = s.Trim().TrimEnd("union all".ToCharArray());
结果:
2.SubString进行截取:Substring(int startIndex, int length);
string str = "abcde";
str = str.Substring(0, str.Length-1);
3.Remove:Remove(int startIndex, int count);
string str = "abcde";
str = str.Remove(str.Length - 1, 1);