As long as you practice this "Ten Steps to Practice Photoshop Pen Tool" 5 times, you will become a master of cutting out images.
a, b, and c respectively represent the three control points of the pen, corresponding to the following:
. ........ .............
a............b.............c
1. Hold down CTRL, click b and drag to observe the phenomenon and remember this function.
2. Hold down CTRL, click a or c and drag to observe the phenomenon and remember this function.
3. Hold down ALT and click b to observe the phenomenon and remember this function.
4. Hold down ALT, click a or c with the mouse and then drag to observe the phenomenon and remember this function.
5. When drawing the next node, hold down SHIFT to observe the phenomenon and remember this function.
6. When drawing the next node, hold down CTRL to observe the phenomenon and remember this function.
7. When drawing the next node, hold down SHIFT and drag without releasing the mouse to observe the phenomenon and remember this function.
8. Return to the previously drawn contact (that is, b), hold down ALT point b, observe the phenomenon and remember this function. Then hold and drag to observe the phenomenon and remember this function.
9. Return to the previously drawn contact point (that is, b), hold down CTRL point b and drag to observe the phenomenon and remember this function.
10. Instead of using the keyboard, use the mouse to draw alone, observe the phenomenon and remember this advantage.
Related tips: Original link
aAfter modifying the node during drawing, click the last node, and then continue drawing, so that a new path will not be started.
bAfter closing the path, just press CTRL+Enter to turn the path into a selection.
cUnder the path panel, there is a button to change the selected area into a path. After it is converted into a path, it will be output in AI format and can be called directly in AI.