regex match @words

main.dart

main(List<String> arguments) {
  final r = RegExp(r'\s(@(\S+))');
  final str = '@abc adkj  sfksjdlfj@@@fjdlksjf @abc@aa df  @@@ccc @dfj @你好';
  final matches = r.allMatches(" " + str);
  for (final match in matches) {
    //    print(match.group(1)); // 带@符号的
    print(match.group(2)); // 不带@符号的
  }
}