说明： 可能大多数人都看过了，不过我觉得写的特好，并且这里好像没有，所以我就把它给方上来，送改初学者。 ( The possible majority people all to have looked, but I thought
writes is especially good, and here looks like does not have,
therefore I on give it the side to come up, delivers changes the
beginner. )
