The previous one said some coarse simple definition information. Let's follow, huh, huh,
Unfortunately, there is no deep theory, and it is still some thick things. And listen to me:
1. Text can be accurately positioned, or it can be displayed in a text arrangement.
contains a lot of properties, and then explain in detail later.
2, the picture is also the same
3, various forms of forms
Button
Drop-down list
Button button
Property button
and many more………………
