Buy a pen, focusing on the quality of the nib. The quality of the pen tip can be tested by the following simple methods: when buying a pen, write casually with a new pen tip on ordinary paper naturally and continuously, and if it feels smooth, you don't have to scrape the paper; At the same time, we should also feel that the pen tip should be elastic (this needs constant practice); And redemption. Pay attention to the length and thickness of the pen to match your hand shape. This hand type refers to the difference between men and women, the difference between fat and thin, and so on. , subject to self-comfort. Plus ink, these are related to the fluency of the pen.