Dictionary Dic=new Dictionary (a); 
Dic. The Add (1, "AAA"); 
Dic. The Add (2, "BBB"); 
Dic. The Add (12, "CCC"); 

String a="12"; 

The foreach (var temp in dic) 
{
A=Regex. Replace (a, $" \ \. {temp. Key} (?=[^ \ \ d]) ", temp., Value); 
} 

If it is "12" will replace
But in the end only. 12 won't replace CCC,
O how change

CodePudding user response:

Under what data that you have to do something, I'm not familiar with regular expressions, so the code also try to avoid using this, tell your requirements, give you a other solution.