按照以下代码的精神，对象初始值设定项是否可以在类似java或c#的颤振（dart）中使用？

按照以下代码的精神，对象初始值设定项是否可以在类似java或c#的颤振（dart）中使用

Person p = new Person()
{
    FirstName = "John",
    LastName = "Doe",
    Address = new Address()
    {
        Street = "1234 St.",
        City = "Phoenix"
    }
};

---

要在Dart中获得相同的效果，请在构造函数中使用命名参数。例如：

class Person {
  Person({ this.firstName, this.lastName, this.address, this.tn });

  String firstName;
  String lastName;
  String tn;
  Address address;
}

class Address {
  Address({ this.street, this.city, this.zip });
 
  String street;
  String city;
  String zip;
}

// create a person with no fields initialized
var person = Person(); 

// only init first and last
var person1 = Person(firstName: 'John', lastName: 'Doe'); 

// this is equivalent to the OPs question
var person2 = Person(address: Address(street: '1234 St.', city: 'Phoenix'), 
  lastName: 'Doe', firstName: 'John');

现在，您可以使用命名参数初始化这些类中的部分或所有字段，只需提供所需的参数和值，并且可以按任意顺序进行初始化。例如：

class Person {
  Person({ this.firstName, this.lastName, this.address, this.tn });

  String firstName;
  String lastName;
  String tn;
  Address address;
}

class Address {
  Address({ this.street, this.city, this.zip });
 
  String street;
  String city;
  String zip;
}

// create a person with no fields initialized
var person = Person(); 

// only init first and last
var person1 = Person(firstName: 'John', lastName: 'Doe'); 

// this is equivalent to the OPs question
var person2 = Person(address: Address(street: '1234 St.', city: 'Phoenix'), 
  lastName: 'Doe', firstName: 'John');

---

不。这是dart的错误语法。dart中没有匿名类