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【CSharp】根据字节数自动换行

作者:QWER_ASDFASDF / 发布于2013/10/24/ 613


	/// <summary>
	 /// 获取拆分后的字符串列表。
	 /// </summary>
	 /// <param name="mOrigianlString">单段内容</param>
	 /// <param name="subStringCharNumber">每行字节长度</param>
	 /// <returns></returns>
	 public static ArrayList GetSeparateSubString(string mOrigianlString, int subStringCharNumber)
	 {
	 ArrayList resultList = new ArrayList();
	 string tempStr = mOrigianlString;
	 int charNumber = subStringCharNumber;
	 int totalCount = 0;
	 string mSubStr = "";
	 for (int i = 0; i < tempStr.Length; i++)
	 {
	 string mChar = tempStr.Substring(i, 1);
	 int byteCount = Encoding.Default.GetByteCount(mChar);//关键点判断字符所占的字节数

	 if (byteCount == 1)
	 {
	 totalCount++;
	 mSubStr += mChar;
	 if (totalCount == charNumber || i == tempStr.Length - 1)
	 {
	 resultList.Add(mSubStr);
	 totalCount = 0;
	 mSubStr = "";
	 }
	 }
	 else if (byteCount > 1)
	 {

	 totalCount += 2;
	 if (totalCount > charNumber)
	 {
	 resultList.Add(mSubStr);
	 if (i == tempStr.Length - 1)
	 {
	 mSubStr = mChar;
	 resultList.Add(mSubStr);
	 }
	 else
	 {
	 totalCount = 2;
	 mSubStr = mChar;
	 }
	 }
	 else if (totalCount == charNumber)
	 {
	 mSubStr += mChar;
	 resultList.Add(mSubStr);
	 totalCount = 0;
	 mSubStr = "";
	 }
	 else if (i == tempStr.Length - 1)
	 {
	 mSubStr += mChar;
	 resultList.Add(mSubStr);
	 }
	 else
	 {
	 mSubStr += mChar;
	 }
	 }
	 }
	 return resultList;
	 }

	 /// <summary>
	 /// 根据字节数自动换行
	 /// </summary>
	 /// <param name="str">字符串</param>
	 /// <param name="len">每行字符数</param>
	 /// <returns></returns>
	 public static string GetHH(string str,int len)
	 {
	 try
	 {
	 ArrayList aList = new ArrayList();
	 string strPrint = "";
	 //str = str.Replace(" ", "　"); //两个半角空格，替换为一个全角空格
	 string[] aa = str.ToString().Split(new string[] { "\r\n" }, StringSplitOptions.None);
	 for (int m = 0; m < aa.Length; m++)
	 {
	 aList = GetSeparateSubString(aa[m].ToString(), len);

	 for (int i = 0; i < aList.Count; i++)
	 {
	 strPrint = strPrint + aList[i].ToString() + "\r\n";
	
	 }

	
	 }
	
	 return strPrint;
	 }
	 catch (Exception ex)
	 { }
	 }

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