验证当前设备是否是pc

function check() { 
			var userAgentInfo=navigator.userAgent; 
			var Agents =new Array("Android","iPhone","SymbianOS","Windows Phone","iPad","iPod"); 
			var flag=true; 
			for(var v=0;v<Agents.length;v++) { 
				if(userAgentInfo.indexOf(Agents[v])>0) { 
				flag=false; 
				break; 
				} 
			} 
			return flag; 
		}

　　返回true是pc设备。反之则是移动设备