javascript js - Dvigenie po krugu

Posted 2021-05-04

var R = 80;
    var a = 0;
    var da = 3 * Math.PI / 180;
    var int = setInterval('func_span();', 50);
    function func_span() {
        sp1.style.left = R * Math.cos(a) + 100 + "px";
        sp1.style.top = R * Math.sin(a) + 100 + "px";
        a += da;
    }