A simple timer class to measure passing of the time.
Test your time critical app by overriding the native Javascript Date function
Simple cache module using array as storage
## 示例代码
Test your time critical app by overriding the native Javascript Date function
Syncronize the server time with your app by overriding the native Javascript Date function
对 store 进行了二次封装，支持设置过期时间，支持加密存储。