Javascript计数

嗨，我有一个功能，需要根据用户的输入执行一定次数

(e.g)
 var count=  $('#count').val();//user defined value
 for (var i = 0; i < count; i++) {
                GenerateData();

                  }
 function GenerateData() {
    $.ajax({

        type: "POST", //GET or POST or PUT or DELETE verb
        url: url, // Location of the service
        data: "{}", //Data sent to server
        contentType: "application/json; charset=utf-8", // content type sent to server
        dataType: "json", //Expected data format from server
        processdata: true, //True or False
        success: function (msg) {//On Successfull service call
            ServiceSucceeded(msg);
        },
        error: ServiceFailed// When Service call fails

    });
 }
   function ServiceSucceeded(result) {
  alert("Data generated successfully");
 }

（例如）
var count=$（'#count'）.val（）//用户定义值
对于（变量i=0；i

但是在执行Ajax函数之后，count变量被重置为null。因此，无论输入如何，程序只执行一次。我被困在这里了。。因此，非常感谢您的帮助

尝试以下方法：

 var count=  $('#count').val();//user defined value
 for (var i = 0; i < count; i++) {
     GenerateData(i);
 }

 function GenerateData(i) {
     $.ajax({

        type: "POST", //GET or POST or PUT or DELETE verb
        url: url, // Location of the service
        async: false, // here you make the call synchronous, which means that you are waiting for       respone
        cache: false,
        data: "{}", //Data sent to server
        contentType: "application/json; charset=utf-8", // content type sent to server
        dataType: "json", //Expected data format from server
        processdata: true, //True or False
        success: function (msg) {//On Successfull service call
            ServiceSucceeded(msg);
        },
        error: ServiceFailed// When Service call fails

    });
 }

var count=$（'#count'）.val（）//用户定义值
对于（变量i=0；i

您尚未显示关键的代码位-这是您首先执行此操作的方式。当用户单击“开始”时，此函数开始执行…理想情况下，应根据用户输入的计数值执行“生成数据”函数。您是否看到有许多请求发出？可能您正在处理异步请求，或者您的服务器没有使用正确的数据进行响应。如果请求中包含您想要的resultPerhaps，而不是运行

count

AJAX请求，那么您应该查看请求本身，您应该在

数据中传递
count
，并且只执行一个AJAX请求以一次获得多个结果。尝试使用console.log而不是alert窗口，您将看到它被执行了一次。