jquery $ .ajax:将附加参数传递给'success'回调

$.ajax({
  url: "example.php",
  type: "POST",
  data: {
    key1: "value1",
    key2: "value2"
  },
  dataType: "json",
  success: function(response) {
    // 处理服务器响应
  },
  error: function(xhr, status, error) {
    // 处理错误
  }
});

var extraData = {
  key3: "value3",
  key4: "value4"
};

$.ajax({
  url: "example.php",
  type: "POST",
  data: {
    key1: "value1",
    key2: "value2"
  },
  dataType: "json",
  success: (function(extraData) {
    return function(response) {
      // 在这里，我们可以访问'extraData'和'response'变量
      console.log(extraData);
      console.log(response);
    };
  })(extraData),
  error: function(xhr, status, error) {
    // 处理错误
  }
});