我有以下代码

var test;
     $.ajax({
        type: "GET",
        url: "../views/person/controller.php?actor=person&action=checkAge",
        data: "age=" + value,
        success: function(msg){
            console.log(msg);
            test = msg; 
        },
    });
    Validate.fail(test);

现在，测试var应该像控制台那样将false设置为true。但是test var给了我不确定的原因？