普通缓存获取 @param key 键 @return 值

连接方法 类似于javascript @param join 连接字符串 @param strAry 需要连接的集合 @return

删除缓存 @param key 可以传一个值 或多个

Add a character to the word being stemmed. When you are finished adding characters, you can call stem(void) to stem the word.

普通缓存放入 @param key 键 @param value 值 @return true成功 false失败

* Converts `string` to an integer of the specified radix. If `radix` is * `undefined` or `0`, a `radix` of `10` is used unless `value` is a

After a word has been stemmed, it can be retrieved by toString(), or a reference to the internal buffer can be retrieved by getResultBuffer and getRes

* Checks if `value` is `NaN`. * * **Note:** This method is based on * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same

返回要存到数据库里的日期字符串 本操作会对传入的日期进行验证 即：将yyyymmdd格式变为yyyymmdd格式 @param str yyyymmdd格式串 @return yyyymmdd格式