如何从我给出一些值的类构造函数访问数据. 到另一个变量

Question

这里我要分支数据 = [ 分支(分支： 'MEC' <-----这个值，年份： 常量 [1,2,3,4](]

因为我对课程数据的值 = [ 课程(主题：空，分支：这里我需要上面的分支值，年份：空

import '../models/branch.dart';
import '../models/course.dart';
class CourseData {
final branchData = [
Branch(branch: 'MEC', year: const [1, 2, 3, 4]),
Branch(branch: 'ECE', year: const [1, 2, 3, 4]),
Branch(branch: 'CSE', year: const [1, 2, 3, 4]),
Branch(branch: 'EEE', year: const [1, 2, 3, 4]),
Branch(branch: 'CIV', year: const [1, 2, 3, 4]),
];
final courseData = [
Course(subject: null, branch: null, year: null),
];
}```

Answer 1

void main(){
NewClass instance = NewClass(fromConstructor: 'string that was passed');
print(instance.newVariable);
}

class NewClass {
final String fromConstructor;
String newVariable;
NewClass({this.fromConstructor}){
newVariable = fromConstructor;
}

}

据我所知，您正在尝试从构造函数中获取值并将其传递给第二个变量。您可以通过构造函数执行此操作。