#ifdef TRACE
#undef TRACE     /* All your trace are belong to us. */
#endif
#define TRACE ....

/* My lawyer told me not to reveal */

/*************************** Drag And Drop Section - Start (you should be me to mess with this section)*********************************************/

有一些旧的javascript代码，写得很好。然后是一条评论线

// and there is where the dragon lives

接下来是一个功能，4个人花了一天时间来理解它在做什么。最后我们意识到它根本没用，什么都没有。

// no comments for you
// it was hard to write
// so it should be hard to read

// sometimes I believe compiler ignores all my comments