js操作sessionStorage

1.设置sessionStorage

      Storage.set = function(name, val) {
        sessionStorage.setItem(name, val);
      }

2.获取sessionStorage

      Storage.get = function(name) {
        return sessionStorage.getItem(name);
      }

3.删除sessionStorage

      Storage.del = function(name) {
        sessionStorage.removeItem(name);
      }

4.完整代码