How to select only part of the selection area after pen inspection in PS

1, first open the PS software, and then open the picture to be processed in PS.

2. Next, press the shortcut key "Ctrl+j" to copy the background layer, so as to avoid the damage to the original layer caused by subsequent operations.

3. Next, select "Pen Tool" in the toolbar on the left and draw a path on the picture.

4. Then select "Lasso Tool" in the toolbar on the left, and select "Add to Selection" in the toolbar above, and select only a part of the selection after drawing with a pen.