字符串转化为数组，正则 中英文逗号

var courseKnowledge = fileData.courseCourseware.courseKnowledge;//知识点
	courseKnowledge = courseKnowledge.replace(/，/g,",").split(",");//将字符串中中文逗号转化为英文逗号，并分割
	for(var i=0;i<courseKnowledge.length;i++){
		courseKnowledge[i] = courseKnowledge[i].trim();//去除空格
		if(courseKnowledge[i]==''){
			courseKnowledge.splice(i,1);//删除数组中为空的数据
			i--;
		}
	}
	for(var j=0;j<courseKnowledge.length;j++){
		$("#"+courseKnowledge[j]).prop('checked',true);
		$.uniform.update("#"+courseKnowledge[j]);
		var row = $("#KnowledgePointEnd .template").clone(true).removeClass('hidden template');
		row.find(".knowledgeName").text($("#"+courseKnowledge[j]).attr('title')).stop().parent().attr('id','knowledgePoint'+courseKnowledge[j]);
		row.find(".delKnowledge").click(function(){
			var checkboxId = $(this).parent().attr('id');
			var id = checkboxId.replace(/[^\d]/g,'');//正则过滤字母
			$("#"+id).prop('checked',false);
			$.uniform.update("#"+id);
			$(this).parent().remove();
		});
		row.appendTo("#KnowledgePointEnd ");
	}

 courseKnowledge = courseKnowledge.replace(/，/g,",").split(",");

 以逗号隔开，将字符串转化为数组

courseKnowledge[i] = courseKnowledge[i].trim();//去除空格

 去除空格

if(courseKnowledge[i]==''){
			courseKnowledge.splice(i,1);//删除数组中为空的数据
			i--;
		}

 删除数组中空的数据