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//获取选中项$('#submit').click(function () {    var check_list = []    $("input[name='ck']:checked").each(function () {        check_list.push(this.value);    });    alert(check_list.join(","));});//全选/取消全选$('#all').toggle(function () {    $("input[name='ck']").attr("checked", 'true');}, function () {    $("input[name='ck']").removeAttr("checked");});//反选$('#unselected').click(function () {    $("input[name='ck']").each(function () {        if ($(this).attr("checked")) {            $(this).removeAttr("checked");        } else {            $(this).attr("checked", 'true');        }    });});

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