liangchengyou / wow_english

  const String _assetImagePrefix = "assets/images/";
  
  /// 资源类扩展方法
  extension AssetExtension on String {
    /// 图片url
    String get assetImg => _assetImagePrefix + this;
    String get assetPng => 'assets/images/$this.png';

    String get assetGif => 'assets/images/$this.gif';

  }