多张图片预览同步上传js

/**
 * Created by liujing on 2017/5/10.
 */
$(document).ready(function($) {
    function changef(which,bulk,name_n){
        var bulka = bulk;
        var thisid = which.attr("id");
        var f = which.prop ('files')[0];
        var filename = f.name;
        var mime = filename.toLowerCase().substr(filename.lastIndexOf("."));
        var liid = $("#"+thisid).closest("li").attr("id");
        var liidb = parseInt(liid)+1;
        if(mime==".jpg" || mime==".png"){
            var src = window.URL.createObjectURL(f);
            var name =  $("#logo"+liid).val().split("\\").pop();
            $('#logotips'+liid).css({"background":'url('+src+')','backgroundSize':100+'%'});
            $('#up_flower'+liid).empty().append(name);
            $('#'+liid).append('✖');
            bulka.append('
liidb+'">liidb+'">liidb+'" type="file" name="'+name_n+'" id="logo'+liidb+'">
');
            $('#logotips'+liidb).css({"background":'url("../../img/c_up.png")','backgroundSize':100+'%'});
        }
        $('.logo'+liid).addClass("newc"+liid);
        $('.newc'+liid).removeClass("logo"+liid);
        $('.newc'+liid).on('change',function(){
           var files = $(this).prop('files')[0];
            var srcb = window.URL.createObjectURL(files);
            var liid = $("#"+thisid).closest("li").attr("id");
            var liidb = parseInt(liid)+1;
            var name =  $("#logo"+liid).val().split("\\").pop();
            $('#logotips'+liid).css({"background":'url('+srcb+')','backgroundSize':100+'%'});
            $('#up_flower'+liid).empty().append(name);
        })
        $('.edit_text').on('click',function(){
            $(this).parent().remove();
        })
    } 
    function changelast(which ,bulk){
        var bulka = bulk;
        var thisid = which.attr("id");
        var f = which.prop ('files')[0];
        var filename = f.name;
        var mime = filename.toLowerCase().substr(filename.lastIndexOf("."));
        var liid = $("#"+thisid).closest("li").attr("id");
        var liidb = parseInt(liid)+1;
        if(mime==".jpg" || mime==".png"){
            var src = window.URL.createObjectURL(f);
            var name =  $("#logo"+liid).val().split("\\").pop();
            $('#logotips'+liid).css({"background":'url('+src+')','backgroundSize':100+'%'});
            $('#up_flower'+liid).empty().append(name);
            $('#'+liid).append('✖');
        }
        $('.logo'+liid).addClass("newc"+liid);
        $('.newc'+liid).removeClass("logo"+liid);
        $('.newc'+liid).on('change',function(){
           var files = $(this).prop('files')[0];
            var srcb = window.URL.createObjectURL(files);
            var liid = $("#"+thisid).closest("li").attr("id");
            var liidb = parseInt(liid)+1;
            var name =  $("#logo"+liid).val().split("\\").pop();
            $('#logotips'+liid).css({"background":'url('+srcb+')','backgroundSize':100+'%'});
            $('#up_flower'+liid).empty().append(name);
        })
        $('.edit_text').on('click',function(){
            $(this).parent().remove();
        })
    } 
           
        $(".logo1").one("change",function(){
            that = $(this); var bulk = $("#add_beo"); var name = $(this).attr('name');  changef(that,bulk,name);
        });
        $("#add_beo").one("change",".logo2",function(){
            that = $(this); var bulk = $("#add_beo"); var name = $(this).attr('name');  changef(that,bulk,name);
        });
        $("#add_beo").one("change",".logo3",function(){
            that = $(this); var bulk = $("#add_beo");  var name = $(this).attr('name');  changef(that,bulk,name);
        });
        $("#add_beo").one("change",".logo4",function(){
            that = $(this); var bulk = $("#add_beo");  var name = $(this).attr('name');  changef(that,bulk,name);
        });
        $("#add_beo").one("change",".logo5",function(){
            that = $(this); var bulk = $("#add_beo");  changelast(that , bulk);
        });

        
});