字符串打印自动换行

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace zidonghuanhang{ class Program { static void Main(string[] args) { string a = AutomaticLine("我们都是小青蛙，呱呱呱呱呱，喜欢快乐的生活最爱说笑话", 20); Console.WriteLine(a);
Console.ReadKey(); } public static string AutomaticLine(string strOldText, int paperWidth) { int intLength; string strResult = ""; intLength = System.Text.Encoding.GetEncoding("gb2312").GetByteCount(strOldText); if (intLength > paperWidth) { byte[] bytes =
System.Text.Encoding.Unicode.GetBytes(strOldText); int intCutPos = RealCutPos(bytes, paperWidth); strResult = System.Text.Encoding.Unicode.GetString(bytes, 0, intCutPos * 2) + Environment.NewLine + AutomaticLine(strOldText.Substring(intCutPos), paperWidth);
} else if (intLength < paperWidth) strResult = strOldText; return strResult; } public static int RealCutPos(byte[] b, int length) { //获取UCS2编码 int intCountB = 0;//统计当前的字节数 int intCutPos = 0;//记录要截取字段的位置 while (intCutPos < b.GetLength(0) && intCountB < length)
{ //偶数位置，如0、2、4等，为UCS2编码中两个字节的第一个字节 if (intCutPos%2 == 0) intCountB++; else { if (b[intCutPos] > 0) intCountB++; } intCutPos++; } if (intCutPos%2 == 1) { if (b[intCutPos] > 0) intCutPos--; else intCutPos++; } return intCutPos/2; } }}