热词搜索_针对关键词的样式实现步骤

//项目版本
@{
var t=1;
}
<div>
@foreach(var item in Modle.xxx){//Model为服务器端返回来的总条数数据

 $("#shoWId>button").click(function () {
   var Content=new Array();//存放文本内容的容器
     var guanzi="kkk";//关键字不能为空，所以在项目中需要在此处获取搜索框里面的关键词，并判断不为空是才去执行以下部分
  
     var SelfContent=document.getElementsByClassName("selfClass");     for(var i=0;i<SelfContent.length;i++){
       Content.push(SelfContent[i].innerText);
     }

     for(var k=0;k<Content.length;k++){

         togod(Content[k],guanzi,k);

     }
 });
function  togod(contentStr,key,KID) {

        var set="";
    var positionKey=contentStr.indexOf(key);

    var positionArray=new Array();//存放关键字在文本中的文字的容器
    while (positionKey>-1){
        positionArray.push(positionKey);
        positionKey=contentStr.indexOf(key,positionKey+1);
    }
    for(var j=0;j<positionArray.length;j++){
        var s1=contentStr.substring(0,positionArray[j]);
        var s2='<span  style="color: red;">'+key+'</span>';
        var s3=contentStr.substring(positionArray[j]+key.length,contentStr.length);
             set=s1+s2+s3;//重新组装
    }
      var currentId = "select" + KID;
    document.getElementById("currentId").innerHTML=set;//重新渲染
}

@{
y=0;
var omit="...";
}
 <div class="dxcsearch_content_result_list_title" id="cateMessage@(y)">

                            @if (item.Title.Length > 45)
                            {
                                @item.Title.Substring(0, 45)@omit
                            }
                            else
                            {
                                @item.Title
                            }
 </div>

<script>
    var content = new Array()
    var cateMessage = "@Model.CateMessage";//关键字是从服务器端返回的
    var contentList = document.getElementsByClassName('dxcsearch_content_result_list_title');
   
    if (cateMessage!="") {
        for (var i = 0; i < contentList.length; i++) {
            content.push(contentList[i].innerText);
        }
        for (var k = 0; k < content.length; k++) {
            searchSubStr(content[k], cateMessage, k);
        }
        function searchSubStr(str, subStr, p) {
            var set = "";
            var pos = str.indexOf(subStr);
            var positions = new Array();
            while (pos > -1) {
                positions.push(pos);
                pos = str.indexOf(subStr, pos + 1);
            }

            for (var j = 0; j < positions.length; j++) {
                var s1 = str.substring(0, positions[j]);

                var s2 = '<span style="color:#fe8081">' + cateMessage + '</span >';

                var s3 = str.substring(positions[j] + cateMessage.length, str.length);

                set = s1 + s2 + s3;

            }
            var currentId = "cateMessage" + p;
            document.getElementById(currentId).innerHTML = set;
        }
    }
</script>