将指定字符串按指定长度进行剪切
/// <summary> /// 将指定字符串按指定长度进行剪切， /// </summary> /// <param name="oldStr "> 需要截断的字符串 /// <param name="maxLength "> 字符串的最大长度 /// <param name="endWith "> 超过长度的后缀 /// <returns> 如果超过长度，返回截断后的新字符串加上后缀，否则，返回原字符串 </returns> public static string StringTruncat(string oldStr, int maxLength, string endWith) { if (string.IsNullOrEmpty(oldStr)) // throw new NullReferenceException( "原字符串不能为空 "); return oldStr; if (maxLength maxLength) { string strTmp = oldStr.Substring(0, maxLength); if (string.IsNullOrEmpty(endWith)) return strTmp; else return strTmp + endWith; } return oldStr; }
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