I tried to resolve task #6 (DataClass) at Kotlin Koans. When I used the normal class in code, the test case failed.
以下是我的数据类代码:
data class Person(val name: String, val age: Int)
fun task6(): List<Person> {
return listOf(Person("Alice", 29), Person("Bob", 31))
}
下面是数据类的结果:
[Person(name=Alice, age=29), Person(name=Bob, age=31)]
Here's my code of the normal class:
class Person(val name: String, val age: Int)
fun task6(): List<Person> {
return listOf(Person("Alice", 29), Person("Bob", 31))
}
Here's result of the normal class:
[i_introduction._6_Data_Classes.Person@4f47d241, i_introduction._6_Data_Classes.Person@4c3e4790]
这是否意味着在Kotlin中普通类和数据类是不同的？如果是，那是什么？
Updated:
谢谢@Mallow，你说得对.这很有效:
class Person(val name: String, val age: Int) {
override fun toString(): String {
return "Person(name=$name, age=$age)"
}
}
fun task6(): List<Person> {
return listOf(Person("Alice", 29), Person("Bob", 31))
}