$(function (event) { var x = document.getElementById("mediaId"); var x2 = document.getElementById("mediaShow"); function play() { x.play(); x.muted = false } x2.pause(); x2.muted = true function playShow() { x.pause(); x.muted = true x2.play(); x2.muted = false } var stopStep = 1; var runT = null; var step = -1; var during = 2; $("#choujiang").click(function (event) { play() stopStep = 5 runT = setTimeout(runF, 100); }); function choice(number) { if (number == 1) { alert("香水"); } if (number == 2) { alert("帽子"); } if (number == 3) { alert("再接再厉哟"); } if (number == 4) { alert("华为p20"); } if (number == 5) { $('#photoBody').hide() $('#hongbao').show() playShow() // alert("5元话费"); } if (number == 6) { alert("剃须刀"); } if (number == 7) { alert("明日再战"); } if (number == 8) { alert("短柄伞"); } } function runF() { if (step >= (32 + stopStep)) { $(".gift" + (step % 8)).addClass("back"); step = stopStep; choice(step); clearTimeout(runT); return; } if (step >= (24 + stopStep)) { during += 1; } else { if (during <= 2) { during = 2; } during--; } step++; $(".gift").each(function (index, element) { $(this).removeClass("back"); }); $(".gift" + (step % 8)).addClass("back"); runT = setTimeout(runF, during * 50); } });