📅  最后修改于: 2023-12-03 15:35:13.785000             🧑  作者: Mango
In JavaScript, it is often useful to store a collection of objects in a list. One way to do this is by using the System.Collections.Generic.List1
class, which allows you to store a list of objects of a specific type.
To create a new list object, you can use the new
keyword followed by the name of the class and the type of object you want to store. For example:
let myList = new System.Collections.Generic.List1(System.Object);
This creates a new list object called myList
that can store objects of any type.
To add an object to the list, you can use the Add
method. For example:
let myString = "Hello, world!";
let myNumber = 123;
let myObject = {name: "John"};
myList.Add(myString);
myList.Add(myNumber);
myList.Add(myObject);
This adds three objects to the list: a string, a number, and an object.
To retrieve an object from the list, you can use the Item
property and specify the index of the object you want to retrieve. For example:
let mySecondObject = myList.Item(2);
This retrieves the third object in the list and stores it in the mySecondObject
variable.
To remove an object from the list, you can use the Remove
method and specify the object you want to remove. For example:
myList.Remove(myObject);
This removes the myObject
object from the list.
Using the System.Collections.Generic.List1
class in JavaScript can be a powerful way to store and manipulate collections of objects of a specific type. By understanding how to create a list object, add and retrieve objects, and remove objects, you can create more organized and efficient code.