AngularJS通过$location获取及改变当前页面的URL

var absurl = $location.absUrl(); 
//http://172.16.0.88:8100/#/homePage?id=10&a=100 

 var url = $location.url(); 
 // 结果/homePage?id=10&a=100 

var pathUrl = $location.path() 
//结果/homePage 

var protocol = $location.protocol(); 
//结果http 

var localhost = $location.host(); 
//结果172.16.0.88 

var port = $location.port(); 
//结果8100 

var hash = $location.hash() 
//结果http://172.16.088 

 var search = $location.search(); 
 //结果{id: "10", a: "100"} 

 $location.url('/validation'); 
//结果http://172.16.0.88:8100/#/validation 

$location.hash('myhash3'); 
//结果:http://172.16.0.88:8100/#/homePage?id=10&a=100#myhash3 

$location.search('id','111') 
// 结果(修改参数值)http://172.16.0.88:8100/#/homePage?id=111&a=100 
 
$location.search('ids','111') 
// 结果（新增ids参数): http://172.16.0.88:8100/#/homePage?id=111&a=100&ids=111 

$location.search({id:'55','a':'66'}) 
//结果http://172.16.0.88:8100/#/homePage?id=55&a=66#myhash3 

 $location.search('age',null)