layui table 中数据列中可点击按钮直接上传图片或者展示图片，实现功能如下：

//table 列中模板的代码
<script type="text/html" id="imgTpl2">
		#[[
		<a href="javascript:void(0);" onclick="imgOpen('{{d.ID}}')"  class="layui-table-link">查看</a>/
		<a href="javascript:void(0);" id="{{d.ID}}" class="layui-table-link upload_btn">更换</a>
		]]#
</script>

//table 中渲染的代码
table.render({
                elem: '#searchPeople-manage'
                , url: url
                , toolbar: '#topBar' //开启头部工具栏，并为其绑定左侧模板
                , defaultToolbar: ['filter', 'exports']
                , title: '用户数据表'
                ,even:true //隔行变色
                , loading: true
                // 是否开启字段筛选的记忆功能，支持true/false/'local'/'session'/其他 开启的情况下默认是session，除非显式的指定为'local'
                , colFilterRecord: true
                // 是否开启智能reload的模式
                , smartReloadModel: true
                , cols: [[{type: "checkbox", fixed: "left"},
                    {title: "序号",type:'numbers'},
                    { templet: "#imgTpl2", title: '头像', align: 'center', width: '9%' },
                    {field: "RYBM", title: "人员编码",minWidth:140,sort:true},
                    {field: "XM", title: "姓名", minWidth:80,edit:"text",sort:true},
                    {field: "RYZT", title: "人员状态",templet:"#RyStatus",sort:true},
                    {title: "操作", minWidth: 130, align: "center",fixed:"right", toolbar: "#operation-toolbar"}]]
                ,request: {
                    pageName: 'pageNum' //页码的参数名称，默认：page
                    ,limitName: 'pageSize' //每页数据量的参数名，默认：limit
                }
                ,where:where
                , page: {
                    limit: 20//默认加载20条
                    , curr: 1
                    , limits: [10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 500, 1000]
                    , layout: ['count', 'prev', 'page', 'next', 'limit']
                }, done: function (res, curr, count) {
                    //把当前分页条数存入cache，在export及重载时取出
                    layui.laypage.pageNum = res.curr;
                    layui.laypage.pageSize = res.limit;

                    var tableElem = this.elem;
                    //table render出来实际显示的table组件
                    var tableViewElem = tableElem.next();
                    //渲染当前页面的所有upload组件
                    upload.render({
                        elem: tableViewElem.find('.upload_btn')
                        ,url: '/admin/people/uploadPhoto'//这里是自己的上传的url
                        ,accept: 'file'
                        ,before: function(obj){ //obj包含信息，跟choose回调完全一致。在传值之前先获取id
                            var tableElem = this.item;
                            uploadParam = tableElem.attr('ID');
                            layer.load(); //上传loading
                        }
                        ,data: {
                            odd_number: function () {//data中写值的时候，要用动态获取的方式，即写个function的方式，不然直接写获取不到相应的值。
                                return uploadParam;
                            }
                        }
                        ,done: function (res) {
                            var tableElem = this.item;
                            var id= tableElem.attr('ID');
                            var imageUrl=res.imgUrl;
                            //上传完成后 修改这条数据储存的图片url 
                            //异步修改图片
                            var data = {};
                            data['model.ID']=id;
                            data['model.ZP']=imageUrl;
                            $.ajax({
                                url: '/admin/people/updateImg'
                                ,data:data
                                ,success:function (res) {
                                    if (res.state=='ok'){
                                        layer.closeAll('loading'); //关闭loading
                                        layer.msg('上传成功');
                                    }else{
                                        layer.closeAll('loading'); //关闭loading
                                        layer.msg('上传失败，请重试');
                                    }
                                }
                                ,error:function (res) {
                                    layer.closeAll('loading'); //关闭loading
                                    layer.msg('上传失败，请重试');
                                }
                            });

                        }
                        ,error: function(index, upload){
                            layer.closeAll('loading'); //关闭loading
                            layer.msg('上传失败，请重试');
                        }
                    });

                }
                , text: "对不起，加载出现异常！"
            });


//展示图片的代码

<script>
//异步请求url 展示
 function imgOpen(id){
        var imgUrl="";
        var data = {};
        data['model.ID']=id;
        $.ajax({
            url: '/admin/people/loadImg'
            ,data:data
            ,success:function (res) {
                layer.photos({
                    photos: {title: "查看头像", data: [{src: res.ZP}]},
                    shade: .01,
                    closeBtn: 1,
                    area: ["300px", "400px"]
                })
            }
            ,error:function (res) {
                layer.photos({
                    photos: {title: "查看头像", data: [{src: res.ZP}]},
                    shade: .01,
                    closeBtn: 1,
                    area: ["300px", "400px"]
                })
            }
        });
	}
</script>