正则表达式值条

Question

从字符串 “A123.456C-456.789F987321” 我需要返回

• A123.456
• C-456.789
• F987321

这可以是在下一个非数字（或小数点或符号）字符之前，将3个单独的电话作为“A”（或“C”或“F”，后跟任何小数或小数点或符号（“+”或“ - ” ，或任何字母后跟任意数字或小数的更一般的呼叫直到下一个非数字（或decimalpoint或符号）

感谢

编辑：

为清楚起见，我应该在X方面使用什么正则表达式返回

123.456 Where X = "A" 
-456.789 Where X = "C" 
987321 Where X = "F" 

从字符串“A123.456C-456.789F987321”

Answer 1

试试这个：

(\w\-?[\d\.]+) 

说明：

\w match any word character [a-zA-Z0-9_] 
\-? matches the character - literally 
     Quantifier: Between zero and one time, as many times as possible, giving back as needed [greedy] 
[\d\.]+ match a single character present in the list below 
     Quantifier: Between one and unlimited times, as many times as possible, giving back as needed [greedy] 
\d match a digit [0-9] 
\. matches the character . literally 

g modifier: global. All matches (don't return on first match) 

演示：

http://regex101.com/r/iG6lD1

Answer 2

你正在做的重叠正则表达式匹配。您的正则表达式将是：

(?=([A-Z][^A-Z]+)) 

这里是选择大写字母和大于非大写字母作为一个组。

您可以轻松地修改此示例根据自己的需要（字母数字和其他字符！）

Answer 3

void Main(string[] args) 
{ 
     var regVal = "A123.456C-456.789F987321"; 

     string pattern =@"([A-Z][-]*[0-9|.]+)"; 
     foreach (Match match in Regex.Matches(regVal, pattern, RegexOptions.IgnoreCase)) 
     Console.WriteLine(match.Groups[1].Value); 

} 

输出为：

A123.456

C-456.789

F987321