Jscript 代码有问题，谁来帮我看看。

Question

function AlertMailNum() { var colors = new Array("red", "orange", "yellow", "green", "cyan", "blue", "purple"); var colorStartIndex = 0; setBreathLightOn(colors, colorStartIndex); } function setBreathLightOn(colors, colorIndex) { var mailNum = $("input[id$='MailNum']").val(); if (mailNum > 0) { var mailMappingButton = $("[id$='MailMappingLinkButton']"); colorIndex = colorIndex % 7; mailMappingButton.animate( { color: colors[colorIndex] }, 2000, "swing", setBreathLightOn(colors, colorIndex + 1)); } else { var mailMappingButton = $("#Header_MailMappingLinkButton"); mailMappingButton.removeAttr("style"); } }

Answer 1

你这个递归操作会出现死循环了

Answer 2

function setBreathLightOn(colors, colorIndex) {
    var mailNum = $("input[id$='MailNum']").val();
    if (mailNum > 0) {
        var mailMappingButton = $("[id$='MailMappingLinkButton']");
        colorIndex = colorIndex % 7;
        mailMappingButton.animate(
            { color: colors[colorIndex] },
            2000,
            "swing",
            function () {
                if (mailNum > 0) {
                    setBreathLightOn(colors, colorIndex + 1);
                }
                else
                {
                    mailMappingButton.removeAttr("style");
                }
            });
    }
}

使用递归时犯的低级错误。代码进入死循环了。应该有循环出口。