图片预加载

<script src="imgloader.js"></script> 或者 var imgLoader = require('./lib/imgLoader.js'); 调用

var arr = [ 'http://img.dwstatic.com/www/1605/326487013743/1462867118922.jpg', 'http://img2.dwstatic.com/www/1607/332156260726/1468201777561.png', 'http://img4.dwstatic.com/www/1607/331553311031/1467598667542.png', 'http://s1.dwstatic.com/group1/M00/47/8C/e5cc2e5c714e272ae2531bd61d00d316.jpg' ]; new ImgLoader(arr, { onLoading: function(count, total, src) { console.log('onLoading:single loaded:', arguments); console.log('<p>' + src + '<br/>加载中。。。'+ count/total*100 +'%</p>'); }, onComplete: function(time) { console.log('oncomplete:all source loaded:',arguments); console.log('<p>加载完成,总共耗时:'+time+'ms</p>'); } });

或者第二个参数为函数，表示所有图片加载完成后的回调

new ImgLoader(arr, function(time) { console.log('oncomplete:all source loaded:',arguments); console.log('<p>加载完成,总共耗时:'+time+'ms</p>'); }); 配置参数