09 2013 档案

获取屏幕方向
摘要:function orientationChange(){switch(window.orientation) {case 0: // Portraitcase 180: // Upside-down Portrait// Javascript to setup Portrait viewbreak;case -90: // Landscape: turned 90 degrees counter-clockwisecase 90: // Landscape: turned 90 degrees clockwise// Javascript to steup Landscape viewbre 阅读全文

posted @ 2013-09-29 12:59 CatherineGao 阅读(253) 评论(0) 推荐(0) 编辑

使用Canvas把照片转换成素描画
摘要:原文:http://www.alloyteam.com/2012/07/convert-picture-to-sketch-by-canvas/腾讯的alloy team写的一个素描效果,挺不错的。<img title="sketch" src="http://www.alloyteam.com/wp-content/uploads/auto_save_image/2012/07/0208516qY.png" alt="" width="534" height="398&qu 阅读全文

posted @ 2013-09-24 13:37 CatherineGao 阅读(1416) 评论(0) 推荐(0) 编辑

用html5的canvas生成图片并保存到本地
摘要:原文:http://www.2cto.com/kf/201209/156169.html前端的代码:[javascript]function drawArrow(angle){ //Init canvas var canvas = $('#cv_Arrow')[0]; var context = canvas.getContext('2d'); var width = canvas.width; var height = canvas.height; context.clearRect(0, 0, width, height); //Rotate var dis 阅读全文

posted @ 2013-09-24 13:10 CatherineGao 阅读(3996) 评论(0) 推荐(0) 编辑

使用 JavaScript File API 实现文件上传
摘要:原文:http://www.oschina.net/code/snippet_12_3073function addDNDListeners(){ var container = document.getElementById("container"); var fileList = document.getElementById("fileList"); container.addEventListener("dragenter", function(event){ fileList.innerHTML =''; e 阅读全文

posted @ 2013-09-24 12:59 CatherineGao 阅读(570) 评论(0) 推荐(0) 编辑

随机数组找丢失数据
摘要:例:1-20的随机数组,找丢失的某几个数function find(arr,count){ var str= arr.toString(); var newarr=[]; for(var i=1;i<=count;i++){ var reg=new RegExp("^"+i+",|,"+i+",|,"+i+"$","g"); if(reg.test(str)) continue; newarr.push(i); } return newarr;}var arr=[11,2,4,7,8,3, 阅读全文

posted @ 2013-09-05 18:08 CatherineGao 阅读(222) 评论(0) 推荐(0) 编辑

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