项目中ajax交互成功前总会需要给用户提醒，比如请稍候、正在加载中等等，那个等待的动图以前项目中用的是gif，在移动端画质很渣，有毛边，于是在新项目中用css3展示加载中的动画效果。
function tipLoading(type,top,left){
if($("arrorbox"))$('#arrorbox').remove();
var dataType=[
'<div class="sk-circle"><div class="sk-circle1 sk-child"></div><div class="sk-circle2 sk-child"></div><div class="sk-circle3 sk-child"></div><div class="sk-circle4 sk-child"></div><div class="sk-circle5 sk-child"></div><div class="sk-circle6 sk-child"></div><div class="sk-circle7 sk-child"></div><div class="sk-circle8 sk-child"></div><div class="sk-circle9 sk-child"></div><div class="sk-circle10 sk-child"></div><div class="sk-circle11 sk-child"></div><div class="sk-circle12 sk-child"></div></div>',
'<div class="spinner"><div class="bounce1"></div><div class="bounce2"></div><div class="bounce3"></div></div>',
],
html="<div class='tiploading'></div>", type = type || 0,
top = top || "48%",
left = left || "50%",
timer= null;
$("body").append(html);
if($(".tiploading")){
$(".tiploading").css({
"margin-left": -20+"px",
"left": left,
"top": top
});
!type==1?$(".tiploading").append(dataType[type]+"<div class='tiploading-con'>请稍候</div>"):$(".tiploading").append(dataType[type]+"<div class='tiploading-con'></div>");
}
}
function tipLoadingRemove(){
if($(".tiploading")){
$(".tiploading").remove();
}
}
js放在项目公用里，样式放到公用样式里，调用的时候tipLoading(type,top,left)，在ajax交互成功前调用，成功后调用tipLoadingRemove()移除，也可以加个超时，不过让删了，type现在只有两种，网上有很多种，可以再加自己需要的，默认第一种0，传个1就是第二种。top、left为位置。
css↓↓
/*2016-12-10 wm 加载样式*/
.tiploading{width: 40px;height: 40px;background: rgba(0,0,0,.7);position:fixed;border-radius: 10px;z-index:;}
.tiploading .tiploading-con{position:absolute;bottom:10px;left:;width: 100%;height: 20px;line-height: 20px;font-size: 12px;color:#fff;text-align: center;}
/*type1*/
.sk-circle {width: 30px;height: 30px;position: relative;top:5px;left:5px;}
.sk-circle .sk-child {width: 100%;height: 100%;position: absolute;left:;top:;}
.sk-circle .sk-child:before {content: '';display: block;margin: 0 auto;width: 15%;height: 15%;background-color: #fff;border-radius: 100%;-webkit-animation: sk-circleBounceDelay 1.2s infinite ease-in-out both;animation: sk-circleBounceDelay 1.2s infinite ease-in-out both;}
.sk-circle .sk-circle2 {-webkit-transform: rotate(30deg);-ms-transform: rotate(30deg);transform: rotate(30deg); }
.sk-circle .sk-circle3 {-webkit-transform: rotate(60deg);-ms-transform: rotate(60deg);transform: rotate(60deg); }
.sk-circle .sk-circle4 {-webkit-transform: rotate(90deg); -ms-transform: rotate(90deg); transform: rotate(90deg); }
.sk-circle .sk-circle5 {-webkit-transform: rotate(120deg); -ms-transform: rotate(120deg); transform: rotate(120deg); }
.sk-circle .sk-circle6 {-webkit-transform: rotate(150deg); -ms-transform: rotate(150deg); transform: rotate(150deg); }
.sk-circle .sk-circle7 {-webkit-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); }
.sk-circle .sk-circle8 {-webkit-transform: rotate(210deg); -ms-transform: rotate(210deg); transform: rotate(210deg); }
.sk-circle .sk-circle9 {-webkit-transform: rotate(240deg); -ms-transform: rotate(240deg); transform: rotate(240deg); }
.sk-circle .sk-circle10 {-webkit-transform: rotate(270deg); -ms-transform: rotate(270deg); transform: rotate(270deg); }
.sk-circle .sk-circle11 {-webkit-transform: rotate(300deg); -ms-transform: rotate(300deg); transform: rotate(300deg); }
.sk-circle .sk-circle12 {-webkit-transform: rotate(330deg); -ms-transform: rotate(330deg); transform: rotate(330deg); }
.sk-circle .sk-circle2:before {-webkit-animation-delay: -1.1s; animation-delay: -1.1s; }
.sk-circle .sk-circle3:before {-webkit-animation-delay: -1s; animation-delay: -1s; }
.sk-circle .sk-circle4:before {-webkit-animation-delay: -0.9s; animation-delay: -0.9s; }
.sk-circle .sk-circle5:before {-webkit-animation-delay: -0.8s; animation-delay: -0.8s; }
.sk-circle .sk-circle6:before {-webkit-animation-delay: -0.7s; animation-delay: -0.7s; }
.sk-circle .sk-circle7:before {-webkit-animation-delay: -0.6s; animation-delay: -0.6s; }
.sk-circle .sk-circle8:before {-webkit-animation-delay: -0.5s; animation-delay: -0.5s; }
.sk-circle .sk-circle9:before {-webkit-animation-delay: -0.4s; animation-delay: -0.4s; }
.sk-circle .sk-circle10:before {-webkit-animation-delay: -0.3s; animation-delay: -0.3s; }
.sk-circle .sk-circle11:before {-webkit-animation-delay: -0.2s; animation-delay: -0.2s; }
.sk-circle .sk-circle12:before {-webkit-animation-delay: -0.1s; animation-delay: -0.1s; }
@-webkit-keyframes sk-circleBounceDelay {0%, 80%, 100% {-webkit-transform: scale(0); transform: scale(0); } 40% {-webkit-transform: scale(1); transform: scale(1); } }
@keyframes sk-circleBounceDelay {0%, 80%, 100% {-webkit-transform: scale(0); transform: scale(0); } 40% {-webkit-transform: scale(1); transform: scale(1); } }
/*type2*/
.spinner {margin: 10px auto ;width: 40px;text-align: center;}
.spinner > div {width: 8px;height: 8px;background-color: #fff;border-radius: 100%;display: inline-block;-webkit-animation: sk-bouncedelay 1.4s infinite ease-in-out both;animation: sk-bouncedelay 1.4s infinite ease-in-out both;}
.spinner .bounce1 {-webkit-animation-delay: -0.32s;animation-delay: -0.32s;}
.spinner .bounce2 {-webkit-animation-delay: -0.16s;animation-delay: -0.16s;}
@-webkit-keyframes sk-bouncedelay {0%, 80%, 100% { -webkit-transform: scale(0) } 40% { -webkit-transform: scale(1.0) } }
@keyframes sk-bouncedelay {0%, 80%, 100% {-webkit-transform: scale(0); transform: scale(0); } 40% {-webkit-transform: scale(1.0); transform: scale(1.0); } }
type1
