How to brush the music composition of the dance era with the mantissa of 10 or 1

The composition method of the music score of the dance period with the ending 10 or 1;

1, click E on the right side of the dialog box, and an expression will appear in the lower right corner of the game window.

2. Select 2 with the mouse, press ctrl and E, and the expression will also appear in the lower right corner. You can use the mouse to select 3, punctuate the semicolon with shortcut keys in Chinese or English, and the mantissa 10 or 1 will appear.