这是一段jquery代码，请帮我修改为，如果五秒内链接不到服务器则打印"未找到服务器"： $.post("http://localhost:8080/xxxx/home.do",temp, function(data) { let com = document.getElementById("commodity_row"); let card = ``; $.each(data, function(i, v) { card += ` <div class="col-xl-2 col-lg-3 col-md-3 col-sm-4 col-6 mb-2"> <div class="card card_aive cur-poi card_color"> <img src="http://localhost:8080/xxxx/${v.g_Pic}" class="card-img-top " > <div class="card-body"> <span class="card-text">${v.g_Name}</span> <p class="card-text font-size-12 color-red">${v.gCategories_Id.c_Name}</p> <p id="price" class="card-text text-right color-red">￥${v.g_Money}</p> </div> </div> </div>`; }) com.innerHTML = card; }, "json");

你可以使用setTimeout函数来实现五秒钟后未链接成功则打印“未找到服务器”的效果，代码如下：

$.ajax({
    url: "http://localhost:8080/xxxx/home.do",
    type: "POST",
    data: temp,
    dataType: "json",
    success: function(data) {
        let com = document.getElementById("commodity_row");
        let card = ``;
        $.each(data, function(i, v) {
            card += ` <div class="col-xl-2  col-lg-3 col-md-3 col-sm-4 col-6 mb-2"> 
                            <div class="card card_aive cur-poi card_color"> 
                                <img src="http://localhost:8080/xxxx/${v.g_Pic}" class="card-img-top " > 
                                <div class="card-body"> 
                                    <span class="card-text">${v.g_Name}</span> 
                                    <p  class="card-text font-size-12 color-red">${v.gCategories_Id.c_Name}</p> 
                                    <p id="price" class="card-text text-right color-red">￥${v.g_Money}</p> 
                                </div> 
                            </div>  
                        </div>`;
        });
        com.innerHTML = card;
    },
    error: function(jqXHR, textStatus, errorThrown) {
        setTimeout(function() {
            console.log("未找到服务器");
        }, 5000);
    }
});

这里使用了$.ajax()函数来发送请求，并在请求失败时使用setTimeout函数来实现五秒钟后打印“未找到服务器”的效果。