html5存储

localStorage.setItem('aa','aa');

undefined

localStorage.getItem('aa');

"aa"

localStorage.removeItem('aa');

undefined

localStorage.clear();

undefined

sessionStorage.setItem('bb','bbtest');

undefined

sessionStorage.getItem('bb');

"bbtest"

 

sessionStorage是临时存储，关闭浏览器或者创建新tab就会消失