我正在嘗試跨數(shù)組訪問(wèn)對(duì)象值，但每次都顯示為未定義。如何讓數(shù)組“terrain”使用“Dirt”對(duì)象變量，例如 SpawnChance？var terrain = new Array("Dirt1", "Dirt2", "Dirt3");var Dirt1 = new Object();Dirt1.Name = 'Dirt1';Dirt1.Level = '1';Dirt1.SpawnChance = '70';var Dirt2 = new Object();Dirt2.Name = 'Dirt2';Dirt2.Level = '1';Dirt2.SpawnChance = '15';var Dirt3 = new Object();Dirt3.Name = 'Dirt3';Dirt3.Level = '1';Dirt3.SpawnChance = '10';if ($("#startingblock").hasClass("Dirt1")) {  var blockcount = (Math.floor(Math.random() * 20) + 1) * 2;  var blockcount = blockcount * blockcount;  var i = 0;  while (i < blockcount) {    var randomizer = (Math.floor(Math.random() * 100) + 1);    var terraintypes = terrain.length;    var terrainrandoms = (Math.floor(Math.random() * terraintypes) + 0);    var newrandomterrain = (terrain[terrainrandoms]);    var randomterrainspawnchance = newrandomterrain.SpawnChance;    terrain.push(newrandomterrain);    alert(newrandomterrain);    i++;  }