Kotlin如何创建动态对象 [英] Kotlin How to create dynamic Object

问题描述

在javascript中，我们可以做类似的事情

In javascript we can do something like this

function putritanjungsari(data){
	console.log(data.name)
}

let data = {
	name:"putri",
	div:"m4th"
}
putritanjungsari(data)

在kotlin中，我正在创建一个接受对象作为参数的函数，然后稍后读取其属性，如何在kotlin中以JVM为目标呢?

In kotlin, i'am creating a function that accept an object as parameter then read it's properties later, how to do that in kotlin that targeting JVM?

推荐答案

如果我正确理解了您的问题，则您尝试使用一个变量，该变量将键与某个值相关联，或者如果找不到键，则该键为undefined(kt中为null).您正在搜索地图 如果您不知道想要什么类型，可以制作任何类型的地图?所以

If I understood your question correct, you are trying to have a variable that associates keys with some value or undefined(null in kt) if none are found. You are searching for a Map If you don't know what types you want, you can make a map of type Any? So

Map<String, Any?>

哪些也是可空的

Map<String, Any>

如果您不希望为空

例如，您的代码:

fun putritanjungsari(data: Map<String, Any?>){
print(data["name"]) 
}

val data: Map<String, Any?> =mapOf(        
"name" to "putri",
"div" to "m4th" 
)
putritanjungsari(data)

请注意，您不能在此处添加新键或编辑任何数据，默认映射是不可变的.有MutableMap(实现方式相同，只是它具有放置新数据的方法)

Note that you can't add new keys or edit any data here, the default map is immutable. There is MutableMap (which is implemented the same, only it has a method to put new data)

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