用 abort()啊

(() => {
let a = [];
$(document).on("click", ".Ajax", function () {
for (let o of a) {
o.abort();
}
a = [];
$("#list .Title").each(function () {
var id = $(this).data("id");
var ajax = $.ajax({
type: "get",
dataType: "json",
url: "http://xx.com/xx.php?id="+id,
success: function (data) {
console.log(data);
}
});
a.push(ajax);
})
})
})();