base64加解密

//base64加密
function b64EncodeUnicode(str) {
  return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, function(match, p1) {
    return String.fromCharCode('0x' + p1);
  }));
}
var str= b64EncodeUnicode('[{name:"zhangsan",icon:"122.jpg"}]');

//base64解密
 function b64DecodeUnicode(str) {
   return decodeURIComponent(atob(str).split('').map(function(c) {
     return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
   }).join(''));
 }