关于angular实现文件下载小功能

$scope.downLoad=function(id){

var tt =new Date().getTime();

var url = root +'/ly/fileInfo/download.action?fileInfo.id='+id   这是下载文件的URL和参数

var form=$("<form>");//定义一个form表单

form.attr("style","display:none");

form.attr("target","");

form.attr("method","post");//请求类型

form.attr("action",url);//请求地址

$("body").append(form);//将表单放置在web中

var input1=$("<input>");

input1.attr("type","hidden");

input1.attr("name","tt");

input1.attr("value",tt);

form.append(input1);

var input2=$("<input>");

input2.attr("type","hidden");

input2.attr("name","id");

input2.attr("value",id);

form.append(input2);

form.submit();//表单提交

}