Step 1: Select all references to be numbered with the mouse, and then click the right mouse button.

Step 2: Find the "Number" option in the drop-down menu that appears, and click Enter.

Step 3: In the "numbering" option, find the numbering format corresponding to the paper, and select the corresponding format in the numbering library.

Step 4: Click on the reference number form [1], and it will be numbered automatically as follows, but the following spaces will appear.

Step 5: Select the reference and click the right mouse button to pop up the following shortcut options.

Step 6: Click "Adjust Indentation of List" and change "Tab" into "Space" in the pop-up tab.

Step 7: Click OK, and the space in front will disappear!

202 1-05-28 answer