If this observation method can be implemented, then the quality of the work can be seen.
The original text contains "Wen Xin Diao Long" ... whoever plays a thousand songs and then knows the sound, watches a thousand swords and then knows the instrument. Therefore, we must first learn the image of circular photos. Read Qiao Yue's "Formal Training" and take the turbulent waves as a metaphor. Selfless and important, impartial and hate love, and then you can be fair as a mirror. Therefore, first mark six views: one view, two views, three views, four wonders, five views, and six views of businessmen. If you can do it well, you will see the advantages and disadvantages.