本文编程笔记首发
在网站需要显示的页面添加上代码即可
代码语言：javascript复制<!--效果html开始-->
<div id="container"></div>
<script type="text/javascript">
var Sketch=function(){function e(e){e=n(e||{},l);var t="sketch-" r ,o=e.hasOwnProperty("canvas"),u=o?e.canvas:document.createElement("canvas");switch(e.type){case m:try{s=u.getContext("webgl",e)}catch(d){}try{s=s||u.getContext("experimental-webgl",e)}catch(d){}if(!s)throw"WebGL not supported";break;case c:try{s=u.getContext("2d",e)}catch(d){}if(!s)throw"Canvas not supported";break;default:u=s=document.createElement("div")}return s.canvas=u,u.className="sketch",o?e.autoresize=!1:(e.container.appendChild(u),e.hasOwnProperty("autoresize")||(e.autoresize=l.autoresize),u.id=t),n(self,g),n(s,e),n(s,p),a(),e.autoresize&&i(),w.push(s),s.autostart&&setTimeout(s.start,0),s}function n(e,n){for(var t in n)e.hasOwnProperty(t)||(e[t]=n[t]);return e}function t(e){function n(e,n){return function(){e.call(n,arguments)}}var t={};for(var o in e)t[o]="function"==typeof e[o]?n(e[o],e):e[o];return t}function o(e,n){e.length=0;for(var t=0,o=n.length;o>t;t )e[t]=n[t];return e}function a(){function e(e){return M[e]||String.fromCharCode(e)}function n(e){s.mouse.ox=s.mouse.x,s.mouse.oy=s.mouse.y,s.mouse.x=e.x,s.mouse.y=e.y,s.mouse.dx=s.mouse.x-s.mouse.ox,s.mouse.dy=s.mouse.y-s.mouse.oy}function a(e){var n,o=t(e);o.original=e;for(var a=s.canvas,u=0,i=0;a;a=a.offsetParent)u =a.offsetLeft,i =a.offsetTop;if(o.touches&&o.touches.length)for(var r,c=o.touches.length-1;c>=0;c--)r=o.touches[c],r.x=r.pageX-u,r.y=r.pageY-i,n=A[c]||r,r.dx=r.x-n.x,r.dy=r.y-n.x,r.ox=n.x,r.oy=n.y,A[c]=t(r);else o.x=o.pageX-u,o.y=o.pageY-i,n=A.mouse||o,o.dx=o.x-n.x,o.dy=o.y-n.y,o.ox=n.x,o.oy=n.y,A.mouse=o;return o}function u(e){e.preventDefault(),e=a(e),o(s.touches,e.touches),n(s.touches[0]),s.touchstart&&s.touchstart(e),s.mousedown&&s.mousedown(e)}function r(e){e=a(e),o(s.touches,e.touches),n(s.touches[0]),s.touchmove&&s.touchmove(e),s.mousemove&&s.mousemove(e)}function c(e){if(e=a(e),e.touches.length)for(var n in A)e.touches[n]||delete A[n];else A={};s.touchend&&s.touchend(e),s.mouseup&&s.mouseup(e)}function m(e){e=a(e),s.mouseover&&s.mouseover(e)}function d(e){e=a(e),s.dragging||(x(s.canvas,"mousemove",h),x(s.canvas,"mouseup",v),y(document,"mousemove",h),y(document,"mouseup",v),s.dragging=!0),o(s.touches,[e]),s.touchstart&&s.touchstart(e),s.mousedown&&s.mousedown(e)}function h(e){e=a(e),n(e),o(s.touches,[e]),s.touchmove&&s.touchmove(e),s.mousemove&&s.mousemove(e)}function f(e){e=a(e),s.mouseout&&s.mouseout(e)}function v(e){e=a(e),s.dragging&&(x(document,"mousemove",h),x(document,"mouseup",v),y(s.canvas,"mousemove",h),y(s.canvas,"mouseup",v),s.dragging=!1),delete A.mouse,s.touchend&&s.touchend(e),s.mouseup&&s.mouseup(e)}function w(e){e=a(e),s.click&&s.click(e)}function l(n){
