Introduction - If you have any usage issues, please Google them yourself
1. after selecting the variety of the meal, the cursor is automatically in the number input box. (hint: the setFocus method of the text box)
2. click the "confirm" button and calculate the total amount according to the variety and quantity of the point meal; if it is sent out, add 20 yuan. The table list is given with a message box. (hint: all contents are combined by character connection to be a reminder item for MsgBox, where VB is required to line up, and the vbCrLf is predefined constant, that is, carriage return line.
3. click the next button and prepare for the next meal.
4. notice the reasonable setting of the Enabled properties of the two command buttons.