JQuery line background color alternate display (line color) implementation code _ jquery

We mainly use jquery's attr to add styles for rows. The specific code is as follows. Some css definitions can be selected as needed.
// Display different background colors for single and double rows [method 1 ]:
// $ ("# UL_id li: even"). attr ("className", "redClass ");
// Display different background colors for single and double rows [method 2 ]:
$ ("# UL_id li: even"). addClass ("redClass ");

• Singular


• Double


• Double

Odd: single
Even: double
JQuery table row-changing code

Li line color swap

The row-based color change of the JS control table