var search=document.querySelector('.header-search-input')
var headSearch=document.querySelector('.header-search')
search.onkeyup=function(e){
	$.ajax({
		type:"get",
		url:"search.json",
		async:true,
		dataType:"json" ,
		success:function(data,textStatus,jqXhr){
			for(var i=0;i<data.length;i++){
				if (search.value === data[i][0].Query) {
               		var results = data[i][0].Results[0];
               		var div=document.createElement('div')
               		
               		for(var i=0;i<results.Suggests.length;i++){
               			li=document.createElement('li')
               			li.append(results.Suggests[i].Txt)
						
						div.appendChild(li)
//						console.log(li)
////             			console.log(results.Suggests[i].Txt)
               		}
               		
               		search.appendChild(div)	
               		
               		console.log(search)

//             		lis.style.display="block"
//             		lis.style.position="absolute"
//             		lis.style.top='30px'
//             		lis.style.left="0"
//	         		lis.style.width="99%"
               		
				}
			}
		}
	});
}

如图，没有出来那个下拉的框