main.js

function go(){
    var ps = $("input[name='problem_id']");
    console.log(ps.length);
    // The old code is $ ps != null
    // Have you learned JavaScript ?
    if (ps !== null && ps.length > 0) {
        var f = true;
        var ids = "", ans = "";
        for (var i = 0; i < ps.length; ++ i) {
            var id = $(ps[i]).val();
            var answer = getInputVal(id);
            if (answer === "" || answer === null || answer.length < 1) {
                alert("教务君说需要填写完整的信息，否则无法提交");
                $("[name='problem" + id + "']").focus();
                f = false;
                break;
            } else {
                ids += ("," + id);
                ans += ("," + answer);
            }
        }
        if (f === true) {
            $.post("AssessAction?SetAction=answer",
                {
                    id: ids,
                    answer: ans,
                    assess_id: $("input[name='assess_id']").val(),
                    templateFlag: "0"
                },
                function() {
                    if (data.flag) {
                        alert("教务君说提交成功了！");
                        window.location.href = "http://jiaowu.swjtu.edu.cn:80/servlet/AssessAction?SetAction=studentList";
                    } else {
                        alert(data.error);
                    }
            });
            alert("test");
        } else {
            alert("教务君说无需提交，静待些时日再来吧");
        }
    }
}

function badit() {
    var ind = 4;
    var radios = $(':radio');
    var ps = $("input[name='problem_id']");
    var firstVal = radios[ind].value;
    var dg_ans = '', dg_ids = '';
    for (var i = 1; i <= 18; ++ i) {
        index = Number(ind) + (i - 1) * 5;
        console.log(radios[index]);
        if (i == 17) {
            dg_ans += ',老师真垃圾';
            continue;
        } else if (i == 18) {
            dg_ans += ',课程好无聊，什么都得改改';
            continue;
        } else {
            num = (Number(firstVal) + (i - 1) * 5);
            dg_ans += ',' + num;
        }
    }

    for (i = 0; i < ps.length; ++ i) {
        code = ps[i].value;
        dg_ids += ',' + code;
    }

    alert(dg_ids);
    alert(dg_ans);
    console.log(dg_ids);
    console.log(dg_ans);

    $.post("AssessAction?SetAction=answer",
        {
            id: dg_ids,
            answer: dg_ans,
            assess_id: $("input[name='assess_id']").val(),
            templateFlag: "0"
        },
        function() {
            if (data.flag) {
                alert("教务君说提交成功了！");
            } else {
                alert(data.error);
            }
    });
}