local storage
1.添加
localStorage.name = 'xiaoyi';//存
sessionStorage.name = 'lili';//存
sessionStorage.setItem('name','lili');//存
存一样的会被覆盖
2.获取
sessionStorage.name;//获取
sessionStorage.getItem('name');//获取
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3.删除
sessionStorage.name.removeItem();
全部删除
sessionStorage.clear();
localStorage.clear();