缓存未清除...

问题描述

我有一个具有以下WebClient的函数 

I have a function that has the following WebClient 

    WebClient wc = new WebClient();
    wc.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1");
    wc.Headers.Add("Accept", "application/atom+xml;Version=1");

     // still causing error

     RequestCachePolicy policy = new  RequestCachePolicy( RequestCacheLevel.NoCacheNoStore);
     wc.CachePolicy = policy;

         jsonString = wc.DownloadString（" https://api.weather.gov/alerts/active ？event =特殊海事警告

         jsonString = wc.DownloadString("https://api.weather.gov/alerts/active?event=Special Marine Warning

即使这个字段是空的，它也会以某种方式在我的函数中拉出一个缓存版本。它来自何处以及如何阻止它这样做？
$

Even though this field is empty it is somehow pulling a cached version in my function. Where is this coming from and how do I stop it from doing that?

推荐答案

这篇关于缓存未清除...的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！