以下这串json数据用来存储预加载的图片路径:
代码如下:
var imgData = [ { name: "p1", src: "images/p1.jpg" }, { name: "p2", src: "images/p2.jpg" }, { name: "p3", src: "images/p3.jpg" }, { name: "p4", src: "images/p4.jpg" }, { name: "p5", src: "images/p5.jpg" } ]
下面这个函数可通过json每行的name来获取该行的路径src,让我们看一下代码:
代码如下:
function getData(name) { var picArr = imgData; var picSrc; for (var i = 0; i < picArr.length; i++) { var cur_person = picArr[i]; if (cur_person.name == name) { picSrc = cur_person.src; } } return picSrc; }
函数执行后将返回该行的src。
代码如下:
var g = getData("p1"); console.log(g);
输出后即可看到结果为:images/p1.jpg |