从字符串中删除数字 [英] Delete numbers from a String

问题描述

我想知道如何从字符串中删除数字。我尝试使用StringReplace，但我不知道如何告诉函数我要替换数字。

I'd like to know how I can delete numbers from a String. I try to use StringReplace and I don't know how to tell the function that I want to replace numbers.

这是我尝试的方法：

StringReplace(mString, [0..9], '', [rfReplaceAll, rfIgnoreCase]);

推荐答案

简单但有效。可以优化，但是应该可以从入门中获得所需的信息。

Simple but effective. Can be optimized, but should get you what you need as a start:

function RemoveNumbers(const aString: string): string;
var
  C: Char;
begin
  Result := '';
  for C in aString do begin
      if not CharInSet(C, ['0'..'9']) then
      begin
        Result := Result + C;
      end;
    end;
end;

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