Question 1: Pictures can not be dragged to EXML file problem
The sixth chapter recorded in his diary: https://www.cnblogs.com/dmc-nero/p/11188975.html
Located in Section 3.6 content.
Question 2 : Mask of the component usage issue
Chapter 15. recorded in his diary: https://www.cnblogs.com/dmc-nero/p/11237340.html
Located in Section 6.7 content.