http://blog.yahoo.com/srplab     Components or libraries provide some functions. Other modules may access these functions through their interface. In some cases, the interface functions may be simple. The caller constructs input arguments, calls the function, and gets the return value. These type interfaces are easy to define and no more restrictions. But in other cases, interface functions may be more complicated. Let’s use an example to explain in ... en-us Fri, 24 May 2013 23:19:21 +0800 daily 3