<p>通过key获取储存在redis中的value</p> <p>并释放连接</p> @param key @return 成功返回value 失败返回null

<p>通过key向指定的value值追加值</p> @param key @param str @return 成功返回 添加后value的长度 失败 返回 添加的 value 的长度 异常返回0L

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<p>向redis存入key和value,并释放连接资源</p> <p>如果key已经存在 则覆盖</p> @param key @param value @return 成功 返回OK 失败返回 0

* Return the first value that is defined. Like MooTools' $.pick.

<p>通过key判断值得类型</p> @param key @return

* Require the given path. * * @param {String} path * @return {Object} exports * @api public

* Extend an object with the members of another * @param {Object} a The object to be extended * @param {Object} b The object to add to the first one

* Deep merge two or more objects and return a third object. * Previously this function redirected to jQuery.extend(true), but this had two limitation

* Returns true if the object is not null or undefined. Like MooTools' $.defined. * @param {Object} obj

* Displays an alert. * @param {String} str String to display.