使用 Flutter sqflite 返回单个字符串

Question

This is what I did:

Future<String> getMeaning(String word) async {
    var dbClient = await db;
    String sql = 'SELECT bn_word FROM words WHERE en_word =?';
    var dbQuery = await dbClient.rawQuery(sql, ['$word']);
    if (dbQuery.length > 0) {
      String defn = dbQuery.first.values.toString();
      return defn;
    } else {
      return null;
    }
  }

The method work but it adds opening ( and closing ) to the string. For example, expected to get apple but I get (apple) instead. How to solve this?

Answer 1

尝试这个，

String defn = dbQuery.first.values.first.toString();