Introduction - If you have any usage issues, please Google them yourself
The main realization function:
The 1 page Jump
2 click on the button to change the label content
3 Click on the button to close the form
4 click on the button to close the project
5.form3:
The A. drop-down list and the drop-down box, click the drop-down list,
The drop-down box automatically switch to the corresponding content
B. open another add new content form pull down the frame and the drop-down list
C. will save the drop-down box with a drop-down list of contents to a file
Delete D. drop-down box with a drop-down list of data