写博客
                
        

        if(M('article')->add($add)){
            $data['message'] = '发布成功';
            $data['icon'] = 6;
            $this->ajaxReturn($data);
        }else{
            $data['message'] = '发布失败';
            $data['icon'] = 5;
            $this->ajaxReturn($data);
        }

因为你提交的按钮是button，button的type默认是submit，当你点击按钮时，先触发ajax，接着执行form表单提交

那你得手动阻止跳转：

$('#submit').on('click', function(e) {
    e.stopPropagation();
    e.preventDefault();
    var action = $('#form1').attr('action');
    var title = $('#title').val();
    var tags = $('#tags').val();
    var content = $('#textarea1').val();
    $.post(
        action,
        {title: title, tags: tags, content: content},
        function(data) {
            layer.msg(data.message, {
                icon: data.icon,
                time: 2000 //2秒关闭（如果不配置，默认是3秒）
            });
        }
    );
});