// var arr = [];    // 一维数组
// var arr = [[], [], []] // 二维数组: 数组中的每一个元素都是一个数组

var arr = new Array(4);

for (var i = 0; i < arr.length; i++) {
    arr[i] = new Array(8);
}

function Node(value) {
    this.value = value;
    this.neighbor = [];
}

var a = new Node("a");
var b = new Node("b");
var c = new Node("c");
var d = new Node("d");
var e = new Node("e");
var f = new Node("f");

a.neighbor.push(b);
a.neighbor.push(c);
a.neighbor.push(f);

b.neighbor.push(a);
b.neighbor.push(d);
b.neighbor.push(e);

c.neighbor.push(a);

d.neighbor.push(b);

e.neighbor.push(b);

总感觉缺点啥，等到顿悟了在优化一下吧