javascript - 在 Javascript 中创建具有自己属性的对象数组

Question

var i;


    var Book = new Array();
    var Book[0] = [title: "1984", author: "George Orwell", publisher: "Harvill Secker", price: "€8.99"];
    var Book[1] = [title: "Metro 2033", author: "Dmitry Glukhovsky", publisher: "Orionbooks", price: "€12.99"];
    var Book[2] = [title: "Always Outnumbered, Always Outgunned", author: "Walter Mosley", publisher: "W. W. Norton & Company", price: "€5.99"];    
    var Book[3] = [title: "Journey to the Center of the Earth", author: "Jules Verne", publisher: "Pierre Jules Hetzel", price: "€4.99"];

我试图弄清楚如何创建一个具有自己属性的对象数组，但这似乎不起作用。我不明白发生了什么事。

编辑:

    var i;
    var Book = new Array();
    Book[0] = {title: "1984", author: "George Orwell", publisher: "Harvill Secker", price: "€8.99"};
    Book[1] = {title: "Metro 2033", author: "Dmitry Glukhovsky", publisher: "Orionbooks", price: "€12.99"};
    Book[2] = {title: "Always Outnumbered, Always Outgunned", author: "Walter Mosley", publisher: "W. W. Norton & Company", price: "€5.99"};    
    Book[3] = {title: "Journey to the Center of the Earth", author: "Jules Verne", publisher: "Pierre Jules Hetzel", price: "€4.99"};

    for (i = 0; i < 4; i++)
    {
        document.write("Book: " + Book[i].title + "Author: " + Book[i].author "Publisher: " + Book[i].publisher + "Price: " + Book[i].price);
    }

这是更新后的代码。这仍然不起作用。

编辑2:在document.write中缺少“+”。

Answer 1

您正在将数组传递给数组，而不是对象。

1. 将 [ 更改为 {，因为第二个是正确的对象定义。

2. 不要使用 var 两次。一旦有了变量，就可以在没有 var 的情况下使用它。

   var Book = new Array();
   
   Book[0] = {title: "1984", author: "George Orwell", publisher: "Harvill Secker", price: "€8.99"};
   

你可以像这样使用它:

alert(Book[0].title);