function kefu(obj) {
    console.log("");
    var cssstyle=`
            <style>
				.kefubox {
					position:fixed;
					right:2px;
					z-index:99999;
					transform:translatey(300px);
				}
				.kefubox .main {
					width:48px;
				}
				.kefubox .cursor_default {
					cursor:default;
				}
				.kefubox .floor {
					position:relative;
					box-sizing:border-box;
				}
				.kefubox .floor .erweimaimg {
					background:url("./public/images/more.png") no-repeat;
					background-size:40px 200px;
				}
				.kefubox .floor > div {
					transform:translatex(300px);
				}
				.kefubox .floor:hover div {
					transition:all 300ms linear;
					transform:translatex(0);
				}
				.kefubox .floor .absbox {
					position:absolute;
					right:50px;
					top:2px;
					z-index:3;
				}

				.kefubox .floor .erweima {
					box-shadow:0 0 15px ;
					display:flex;
					flex-wrap:wrap;
					align-items:center;
					justify-content:center;
					padding:5px;
					font-size:12px;
					color:#666;
					background:#fff;
					box-sizing:border-box;
				}
				.kefubox .floor .erweima img {
					width:162px;
					height:187px;
				}
				.kefubox .floor .erweima p {
					width:187px;
					padding:5px 0;
					display:flex;
					align-items:center;
					justify-content:center;
					font-size:12px;
				}
				.kefubox .floor > a {
					width:50px;
					height:220px;
					z-index:9999;
					background-position:center center;
					background-size:25px 25px;
					background-repeat:no-repeat;
					display:flex;
					align-items:center;
					justify-content:center;
				}
            </style>`;

    if(obj.wechatofficial.state==true){
        var wechatofficial="<div class=\"floor\">"+
        "                <a href=\"javascript:;\" class=\"erweimaimg cursor_default\" >"+
        "                </a>"+
        "                <div class=\"absbox\">"+
        "                    <div class=\"erweima\">"+
        "                        <img src=\""+obj.wechatofficial.imgurl+"\" alt=\"\">"+
        // "                        <p>微信公众号</p>"+
        "                    </div></div>";
    }else{
        var wechatofficial="";
    }

    var kefuhtml="<div class=\"kefubox\">"+
    "        <div class=\"main\">"+wechatofficial+
    "            </div>"+
    "        </div>"+
    "    </div>";  

    document.getelementsbytagname("body")[0].insertadjacenthtml('afterbegin', cssstyle + kefuhtml);
}