主要的代码是红色区域，HTML5获取本地文件对象并进行操作

//给上传按钮添加点击事件

    $(".myappTXTUploadBtn").click(function(){

        var filepath = $(".uploadFace").val().trim();

        if(filepath == ""){

            showBlackPage("请您选择要上传的txt文件","请您选择要上传的txt文件");

            return;

        }

        var last = filepath.substr(filepath.lastIndexOf(".")+1);

        if(last == "txt"){

            var file = $(".uploadFace")[0].files[0];

            var reader = new FileReader();

            reader.readAsText(file, "GB2312");

            var urlData;

            reader.onload = function (e) {

                urlData = this.result;

                var dataarray = urlData.split("\n");

                var objs = "[";

                var index = 1;

                for(var i=0;i<dataarray.length;i++){

                    var data = dataarray[i].trim();

                    if(data == ""){

                        continue;

                    }else{

                        var namestart = data.indexOf("【");

                        var nameend = data.lastIndexOf("】");

                        var str = "";

                        if(namestart != -1 && nameend != -1){

                            var obj = {};

                            obj.replytxt = data.substr(namestart+1,nameend-1);

                            str += data.substr(namestart+1,nameend-1);

                            var imgstart = data.indexOf("〖");

                            var imgend = data.lastIndexOf("〗");

                            if(imgstart != -1 && imgend != -1){

                                obj.receiveimg = data.substr(imgstart+1,imgend-nameend-2);

                                str += "\n"+data.substr(imgstart+1,imgend-nameend-2);

                                obj.receivetxt = data.substr(imgend+1);

                                str += "\n"+data.substr(imgend+1);

                            }else{

                                obj.receivetxt = data.substr(nameend+1);

                                str += "\n"+data.substr(nameend+1);

                            }

                            obj.myappid = index;

                            index++;

                            objs += JSON.stringify(obj)+",";

                        }else{

                            continue;

                        }

                    }

                }

                objs = objs.substr(0,objs.lastIndexOf(","));

                objs += "]"

                if(weixinid != ""){

                    $.ajax({

                        type:"POST",

                        url:"/api2/app/myappadd?",

                        data:{

                            weixinid:weixinid,

                            "myapp":objs

                        },

                        success:function(serverData){

                            showBlackPage(serverData["提示信息"],serverData["提示信息"]);

                        }

                    });

                }else{

                    alert("您还没有绑定微信公众账号");

                }

            }

        }else{

            alert("您上传的不是txt文件");

        }

    });