找到包含给定字符串的所有行 [英] Find all lines that contains given string
问题描述
System.IO.StreamReader file = new System.IO.StreamReader(@data.txt);
列表< String> Spec = new List< String>();
while(file.EndOfStream!= true)
{
string s = file.ReadLine();
匹配m = Regex.Match(s,Spec \\s);
if(m.Success)
{
int a = Convert.ToInt16(s.Length);
a = a - 5;
string part = s.Substring(5,a);
Spec.Add(part);
$ b $ p
$ b我试图让所有包含单词Spec,然后是一个空格字符,但是当我运行这个程序时出现错误。
异常的细节如下:
$ b $ p $ 一个未处理的类型异常mscorlib.dll中出现'System.ArgumentOutOfRangeException'
任何人都可以帮我找出原因吗?
文本文件:
ID 560
规格这个... bla bla
blah ...
blah ...
bla bla
bla
分类其他
价格$ 259.95
ID 561
规格更多等等等等...
等等...
等等...
bla bla
bla
类别其他
价格$ 229.95
解决方案 System.IO.StreamReader file = new System.IO.StreamReader(data.txt);
列表< string> Spec =新列表< string>();
while(!file.EndOfStream)
{
if(file.ReadLine()。Contains(Spec))
{
Spec.Add(s。子字符串(5,s.Length - 5));
$ / code $ / pre
$ b $ p 这可能会奏效。 b
System.IO.StreamReader file = new System.IO.StreamReader(@"data.txt");
List<String> Spec= new List<String>();
while (file.EndOfStream != true)
{
string s = file.ReadLine();
Match m = Regex.Match(s, "Spec\\s");
if (m.Success)
{
int a = Convert.ToInt16(s.Length);
a = a - 5;
string part = s.Substring(5, a);
Spec.Add(part);
}
}
I'm trying to get all lines that contains the word "Spec" and then a space character but I get an error when I run this program.
The details of the exception are as follows:
An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll
Could anyone assist me on figuring out why?
Text file:
ID 560
Spec This ... bla bla
blah...
blah...
bla bla
bla
Category Other
Price $259.95
ID 561
Spec more blah blah...
blah...
blah...
bla bla
bla
Category Other
Price $229.95
解决方案 System.IO.StreamReader file = new System.IO.StreamReader("data.txt");
List<string> Spec = new List<string>();
while (!file.EndOfStream)
{
if(file.ReadLine().Contains("Spec"))
{
Spec.Add(s.Substring(5, s.Length - 5));
}
}
That might work.
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