JS图片预加载

var imgSrc=[];
for(var i=1;i<11;i++){
    imgSrc.push('img/che_'+i+'.jpg');
}
console.log(imgSrc);

var loaded=0;
var toload = imgSrc.length;

for(var i=0;i<imgSrc.length;i++){
    var img = new Image();
    img.onload = function(){
        loaded++;
        var percent = parseInt(loaded / toload *100);
        
    }
    img.src = imgSrc[i];
}