C＃添加从文本文件行到一个列表框

Question

我有一个包含文本行的文本文件，我想一定行添加到一个列表框，如果下一行满足例如条件

如果行以＃开头，则添加该行如果下一行与@开始后，所有的行与@

#add this line 
@add this line 
@add this line 
@add this line 
#dont add because the next line is not a @ 
#dont add because the next line is not a @ 
#dont add because the next line is not a @ 
#dont add because the next line is not a @ 
#add this line 
@add this line 
@add this line 
#dont add because the next line is not a @ 
#add this line 
@add this line 
#add this line 
@add this line 

希望启动，这使得现场的任何帮助将是巨大

Answer 1

使用字符串的StartsWith方法http://msdn.microsoft.com/en-us/library/system.string.startswith.aspx

整个的功能就会像

var lines = File.ReadAllLines(yourpath); 
var resultLines = new List<string>(); 
bool adding = false; 
for(int i=0;i<lines.Length;i++) 
{ 
    var line = lines[i]; 
    if((line.StartsWith("#") && i < lines.Length-1 && lines[i+1].StartsWith("@")) 
     || adding && line.StartsWith("@")) 
     adding = true; 
    else if(i < lines.Length-1 && !lines[i+1].StartsWith("@")) 
     adding = false; 
    if(adding) 
     resultLines.Add(line); 
}