获取完整的单词

Question

我有话想A 1，A 12，A 123，为B 1A 1234相同，B 12，B 123，B 1234其中123我这样做的时候意味着三位 现在：

MatchCollection ForA1 = Regex.Matches(inFile, @"\b(A [0-9])\b"); 
MatchCollection ForA2 = Regex.Matches(inFile, @"\b(A [0-9][0-9])\b"); 
.... and so on for three and four digits and B; total 8 lines 

减少代码我做到了这一点：

MatchCollection ForAB1 = Regex.Matches(inFile, @"\b(A [0-9]|B [0-9])\b"); 
MatchCollection ForAB2 = Regex.Matches(inFile, @"\b(A [0-9][0-9]|B [0-9][0-9])\b"); 
.... and so on for three and four digits; total 4 lines 

现在，我想这样做：

MatchCollection ForAB1234 = Regex.Matches(inFile, @"\b(A [0-9]|B [0-9]... 
|A [0-9][0-9]|B [0-9][0-9] and so on for three and four digits)\b"); total 1 line 

此时比赛后我这样做：

foreach (Match m in ForAB1) 
    { 
    //many calculations on the basis of index and length etc 
    } 

我想要什么：

foreach (Match m in ForAB1) 
    { 
    if(Match is 'A [0-9]') 
    {//many calculations on the basis of index and length etc} 
    else... 
    } 

还有什么事很简单，让我不必简单地重复代码由于不同的数字位数？我正在寻找我管道的所有不同的比赛。

编辑：真正的问题是，我不希望m.len，然后检查它是否是A或B因为在现实中我有超过30个这样的表情

Answer 1

为了确保您只检查A 1类型和不A 11类型，你需要使用类似

foreach (Match m in ForAB1) 
{ 
    if (Regex.IsMatch(m.Value, @"^A [0-9]$")) 
    {//many calculations on the basis of index and length etc} 
    else if (Regex.IsMatch(m.Value, @"^A [0-9]{2}$")) 
    {//many calculations on the basis of index and length etc} 
    else... 
}