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准備數據keyword.json：（這裡只貼出部分數據）

[ 
 {"id":1,"initial":"ad","keyword":"奧迪"}, 
 {"id":2,"initial":"ada4l","keyword":"奧迪A4L"}, 
 {"id":3,"initial":"ada6l","keyword":"奧迪A6L"}, 
 {"id":4,"initial":"adq5","keyword":"奧迪Q5"}, 
 {"id":5,"initial":"ada3","keyword":"奧迪A3"}, 
 {"id":6,"initial":"adq7","keyword":"奧迪Q7(進口)"}, 
 {"id":7,"initial":"ada8","keyword":"奧迪A8L(進口)"}, 
 {"id":8,"initial":"bm","keyword":"寶馬"}, 
 {"id":9,"initial":"bm5x","keyword":"寶馬5系"}, 
 {"id":10,"initial":"bm7x","keyword":"寶馬7系"}, 
 {"id":11,"initial":"bt","keyword":"本田"}, 
 {"id":12,"initial":"bqsbx25","keyword":"北汽紳寶 X25"}, 
 {"id":13,"initial":"bqsbx35","keyword":"北汽紳寶X35"}, 
 {"id":14,"initial":"bqsbx55","keyword":"北汽紳寶X55"} 
] 

html結構

<form class="fl search_form" action="#" method="post"> 
 <input class="search_text" id="searchKey" type="search" placeholder="請輸入搜索關鍵字" onkeyup="searchSuggest(this);"/> 
 <input class="search_btn" type="submit" value="搜索"/> 
</form> 
<!--start--智能搜索關鍵字匹配彈出層--> 
<ul class="keywords_list"></ul> 
<!--end--智能搜索關鍵字匹配彈出層--> 

js：

//當在搜索框輸入內容時，根據關鍵字匹配，顯示彈出層 
function searchSuggest(obj){ 
 var searchKey=$(obj).val(); 
 var reg = new RegExp(searchKey,"i"); //忽略大小寫匹配搜索框中輸入的內容 
 $.ajax({ 
 type:"get", 
 url:"data/keyword.json", 
 dataType:"json", 
 success:function(data){ 
  var arr=[]; 
  for(var i=0,len=data.length;i<len;i++){ 
  if(searchKey!="" && (data[i].initial.search(reg)!=-1 || data[i].keyword.search(reg)!=-1)) { 
   arr.push("<li onclick='changeSearchKey(this);'>"+data[i].keyword+"</li>"); 
  } 
  }     
  $(".keywords_list").html(arr).show(); 
 } 
 }); 
} 
//單擊匹配列表中的關鍵字選項時，將該關鍵字顯示在搜索框中 
function changeSearchKey(obj){ 
 var value=$(obj).text(); 
 $("#searchKey").val(value); 
 $('.keywords_list').hide(); 
} 

效果圖：

以上所述是小編給大家介紹的Ajax實現模擬關鍵字智能匹配搜索效果，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對網站的支持！