Flutter：合并时在列表中出错

Question

我正在尝试缩短这些步骤

List<String> questionText = [
    'You can lead a cow down stairs but not up stairs.',
];

List<bool> questionAnswer = [
    false,

将这 2 个列表合并到另一个 class 中，但在 'Question'

中出现错误

class Question {
  String questionText;
  bool questionAnswer;

  Question({required String q, required bool a}) {
    questionText = q;
    questionAnswer = a;
  }
}

//此处出错Error Img

Answer 1

dart里面是这样写的

class Question {
  String questionText;
  bool questionAnswer;

  Question({required this.questionText, required this.questionAnswer});
}

检查：https://dart.dev/guides/language/language-tour#constructors

像这样创建一个对象：

Question question = Question(
   questionText: "You can lead a cow down stairs but not upstairs",
   questionAnswer: false,
);

Flutter：合并时在列表中出错

Flutter: Getting error in List when combining

class

list

flutter