JS设置浏览器缓存，以及常用函数整理

//设置缓存

function set_cache(key,value){

if(key=='') return false;

localStorage.setItem(key, value);

}

//读取缓存

function get_cache(key){

return localStorage.getItem(key);

}

//删除缓存

function remove_cache(key){

localStorage.removeItem(key);

}

//写入cookie

function setCookie(name,value){

var Days = 30;

var exp = new Date();

exp.setTime(exp.getTime() + Days2460601000);

document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();

}

//获取cookie

function getCookie(name){

var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");

if(arr=document.cookie.match(reg))

return unescape(arr[2]);

else

return null;

}

//删除cookie

function delCookie(name){

var exp = new Date();

exp.setTime(exp.getTime() - 1);

var cval=getCookie(name);

if(cval!=null)

document.cookie= name + "="+cval+";expires="+exp.toGMTString();

}

//获取get参数

function get(name) {

var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");

var r = window.location.search.substr(1).match(reg);

if (r != null) return unescape(r[2]); return null;

}

//公钥加密

function encrypt(data){

//需要引入插件jsencrypt.js 下载地址http://download.csdn.net/detail/codercwm/9770398

var obj = new JSEncrypt();

obj.setPublicKey(RSA_PUBLIC_KEY);

var data = obj.encrypt(data);

return data;

}

//私钥解密

function decrypt(data){

//需要引入插件jsencrypt.js 下载地址http://download.csdn.net/detail/codercwm/9770398

var obj = new JSEncrypt();

obj.setPrivateKey(RSA_PRIVATE_KEY);

var data = obj.decrypt(data);

return data;

}

//格式化时间戳

//getLocalTime(1470800400);

//输出：2016-08-10 11:40:00

function getLocalTime(time){

var datetime = new Date();

datetime.setTime(parseInt(time+'000'));

var year = datetime.getFullYear();

var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;
var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();
var hour = datetime.getHours()< 10 ? "0" + datetime.getHours() : datetime.getHours();
var minute = datetime.getMinutes()< 10 ? "0" + datetime.getMinutes() : datetime.getMinutes();
var second = datetime.getSeconds()< 10 ? "0" + datetime.getSeconds() : datetime.getSeconds();
return year + "-" + month + "-" + date+" "+hour+":"+minute+":"+second;

}

//获取当前文件的路径

var path = document.scripts;

path = path[path.length - 1].src.substring(0, path[path.length - 1].src.lastIndexOf("/"));

原文：https://blog.csdn.net/codercwm/article/details/60333223