都是些常用的功能，这里就不多废话了，小伙伴们自己看下就明白了
奉上代码：
代码如下:
生成随机数
function rnd(n,m)
{
return Math.random()*(m-n)+n;
}
function time2date(t)
{
function d(n){return n<10?'0'+n:''+n;}
var oDate=new Date(t*1000);
return oDate.getFullYear()+'-'+d(oDate.getMonth()+1)+'-'+d(oDate.getDate())+' '+d(oDate.getHours())+':'+d(oDate.getMinutes())+':'+d(oDate.getSeconds());
}
function time2day(t)
{
function d(n){return n<10?'0'+n:''+n;}
var oDate=new Date(t*1000);
return oDate.getFullYear()+'-'+d(oDate.getMonth()+1)+'-'+d(oDate.getDate());
}
//拖拽
function drag(objEv,objMove,fnMoveCallBack)
{
var disX=0,disY=0;
objEv.onmousedown=function (ev)
{
var oEvent=ev||event;
disX=(document.documentElement.scrollLeft||document.body.scrollLeft)+oEvent.clientX-objMove.offsetLeft;
disY=(document.documentElement.scrollTop||document.body.scrollTop)+oEvent.clientY-objMove.offsetTop;
if(objEv.setCapture)
{
objEv.onmousemove=fnMove;
objEv.onmouseup=fnUp;
objEv.setCapture();
}
else
{
document.onmousemove=fnMove;
document.onmouseup=fnUp;
return false;
}
};
function fnMove(ev)
{
var oEvent=ev||event;
var l=(document.documentElement.scrollLeft||document.body.scrollLeft)+oEvent.clientX-disX;
var t=(document.documentElement.scrollTop||document.body.scrollTop)+oEvent.clientY-disY;
fnMoveCallBack(l,t);
}
function fnUp()
{
this.onmousemove=null;
this.onmouseup=null;
if(this.releaseCapture)this.releaseCapture();
}
}
function mouseScroll(obj,fnCallBack)
{
bindEvent(obj,'mousewheel',fnScroll);
bindEvent(obj,'DOMMouseScroll',fnScroll);
function fnScroll(ev)
{
var oEvent=ev||event;
var bDown;
if(oEvent.wheelDelta)
{
bDown=oEvent.wheelDelta<0;
}
else
{
bDown=oEvent.detail>0;
}
fnCallBack(bDown);
if(oEvent.preventDefault)oEvent.preventDefault();
return false;
}
}
//摆动运动
zns.site.fx.swing=function (obj,cur,target,fnDo,fnEnd,acc)
{
if(zns.site.fx.browser_test.IE6)
{
fnDo&&fnDo.call(obj,target);
fnEnd&&fnEnd.call(obj,target);
return;
}
if(!acc)acc=0.1;
var Now={};
var x=0; //0-100
if(!obj.__swing_v)obj.__swing_v=0;
if(!obj.__last_timer)obj.__last_timer=0;
var t=new Date().getTime();
if(t-obj.__last_timer>20)
{
fnMove();
obj.__last_timer=t;
}
clearInterval(obj.timer);
obj.timer=setInterval(fnMove,20);
function fnMove(){
if(x<50)
{
obj.__swing_v+=acc;
}
else
{
obj.__swing_v-=acc;
}
//if(Math.abs(obj.__flex_v)>MAX_SPEED)obj.__flex_v=obj.__flex_v>0?MAX_SPEED:-MAX_SPEED;
x+=obj.__swing_v;
//alert(x+','+obj.__swing_v);
for(var i in cur)
{
Now[i]=(target[i]-cur[i])*x/100+cur[i];
}
if(fnDo)fnDo.call(obj,Now);
if(/*Math.abs(obj.__swing_v)<1 || */Math.abs(100-x)<1)
{
clearInterval(obj.timer);
if(fnEnd)fnEnd.call(obj,target);
obj.__swing_v=0;
}
}
};
//弹性运动
zns.site.fx.flex=function (obj,fs,ms)
{
if(zns.site.fx.browser_test.IE6)
{
fnDo&&fnDo.call(obj,target);
return;
}
var MAX_SPEED=16;
if(!fs)fs=6;
if(!ms)ms=0.75;
var now={};
var x=0; //0-100
if(!obj.__flex_v)obj.__flex_v=0;
if(!obj.__last_timer)obj.__last_timer=0;
var t=new Date().getTime();
if(t-obj.__last_timer>20)
{
fnMove();
obj.__last_timer=t;
}
clearInterval(obj.timer);
obj.timer=setInterval(fnMove,20);
function fnMove(){
obj.__flex_v+=(100-x)/fs;
obj.__flex_v*=ms;
if(Math.abs(obj.__flex_v)>MAX_SPEED)obj.__flex_v=obj.__flex_v>0?MAX_SPEED:-MAX_SPEED;
x+=obj.__flex_v;
for(var i in cur)
{
Now[i]=(target[i]-cur[i])*x/100+cur[i];
}
if(fnDo)fnDo.call(obj,Now);
if(Math.abs(obj.__flex_v)<1 && Math.abs(100-x)<1)
{
clearInterval(obj.timer);
if(fnEnd)fnEnd.call(obj,target);
obj.__flex_v=0;
}
}
};
原文地址：https://www.jb51.cc/js/56449.html
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