(1) "Five" refers to five substances: wood, fire, earth, gold and water; (2) "Walking", extending in all directions, is popular and useful, and it is the ancient meaning of action and movement, that is, the endless change and operation of movement. (3) Five elements refer to the movement of five substances, namely wood, fire, earth, gold and water.

(d) The order of the five elements is: wood fires, fire produces soil, soil produces gold, gold produces water, and water.

(5) The sequence of the five elements is: wood, earth, water, fire, Jin Kemu and wood. This restraint relationship is endless. If the wood is golden, the wood will not come loose; Water gets fire, but fire doesn't get angry; If the soil is sparse, the soil should not be too wet; If gold is hot, it will not be collected; If water penetrates into the soil, the soil will not get wet. This is all natural.

Vector diagram uses straight lines and curves to describe graphics. The elements of these graphs are points, lines, rectangles, polygons, circles and arcs. , are calculated by mathematical formulas. Because vector graphics can be calculated by formulas, the volume of vector graphics files is generally small. The biggest advantage of vector graphics is that it will not be distorted regardless of enlargement, reduction and rotation; The biggest drawback is that it is difficult to express realistic image effects with rich color levels.