我想在Javascript / Jquery函数中使用异常处理

My function is like this

我的功能是这样的

// JavaScript Document


$('#MyFormSubmit').submit(function(){

    try{
    /* Ajax - 1 */
    $.ajax({
           url: 'Any',
           type: 'GET',
           data: 'ID',
           contentType: "application/json;charset=utf-8",
           success: function (data) {
               alert("Success - 1");               
            },
            error: function (x, y, z) {
                alert("Error - 1");
            }
        });

    /* Ajax - 2 */
    $.ajax({
           url: 'Any',
           type: 'GET',
           data: 'ID',
           contentType: "application/json;charset=utf-8",
           success: function (data) {
               alert("Success - 2");               
            },
            error: function (x, y, z) {
                alert("Error - 2");
            }
        });

    /* Ajax - 3 */
    $.ajax({
           url: 'Any',
           type: 'GET',
           data: 'ID',
           contentType: "application/json;charset=utf-8",
           success: function (data) {
               alert("Success - 3");               
            },
            error: function (x, y, z) {
                alert("Error - 3");
            }
        });
    }
    catch(e){
        alert(e);   
    }

});
// JavaSc