正则表达式
using System.Text.RegularExpressions;
test = Regex.Replace(test,"
","\\n");
test = Regex.Replace(test,"
","\\n");
using System.Text.RegularExpressions;
test = Regex.Replace(test,"
","\\n");
test = Regex.Replace(test,"
","\\n");
用查找功能,替换功能
建议你用UltraEdit打开你的文件,然后替换 
为^p^p即是‘替换为’所要输入的东西。表示回车换行。
查找内容:[&][#][1][3]
替换为:\n
点全部替换