C# 去除首尾字符或字符串的方法

一、去除首尾字符串

///<summary>
 /// 截前后字符(串)
 ///</summary>
 ///<param name="val">原字符串</param>
 ///<param name="str">要截掉的字符串</param>
 ///<param name="all">是否贪婪</param>
 ///<returns></returns>
        private string getstring(string val,string str,bool all)
        {
            return regex.replace(val, @"(^(" + str + ")" + (all ? "*" : "") + "|(" + str + ")"+(all ? "*" : "") + "$)", "");
        }

二、去除首尾字符

        /// <summary>
        ///
        /// </summary>
        /// <param name="val">原字符串</param>
        /// <param name="c">要截取的字符</param>
        /// <returns></returns>
        private string getstring(string val,char c)
        {
            return val.trimstart(c).trimend(c);
        }