I will give you a detailed analysis of the Illustrator software and share the tutorials on beautifying the line corners.
Method sharing:
I. Use -- [Smooth tool]
1. Click the left mouse button-pencil tool-stay for 2 seconds-smooth tool
2. Select the smoothing tool and click "wipe line" until you are satisfied.
II. Use the rounded corner ]:
1. Effect-stylized-rounded corner
2. Select the rounded corner. Enter the appropriate value. Observe the result.
3. Use [Pen tool] + [deformation tool] (This method is complex and is not recommended. We recommend that you understand it)
1. Use the pen tool first-add a dot before and after the inflection point of the line to be beautified
2. Use the deformation tool-collapse tool
3. Select the collapse tool-click the inflection point with the left mouse button-mainly close to the inflection point
4. Use the pen tool to directly beautify the lines
The pen is at the turning point of the painting-left mouse click to not relax-stretch left and right
Note: close to the inflection point when using the collapse tool.
All right, the above information is the detailed analysis and sharing of the line corner beautification tutorial for the users of this software of Illustrator, you can see that the method is very clear here. I hope the above tutorial can help you.