blocks|key|1031007|text|当您使用Polly时，您必须预先了解一些关于您要修饰的方法/函数的信息，以便能够以正确的方式定义策略。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1031008|在重试的情况下，可以使用16种不同的方法来覆盖不同的用例。|1031009|📷|atomic|offset|length|1031010|1031011|​|1031012|方法或功能|1031013|如果要被修饰的方法不返回任何值，则使用Policy.Handle...|style|CODE|1031014|1031015|1031016|但是，如果它以特定类型返回，则更倾向于Policy<T>.Handle...|1031017|1031018|1031019|同步或异步|1031020|如果要修饰的方法/函数是同步的，那么更喜欢那些而不是有Async后缀的方法。|BOLD|1031021|1031022|1031023|1031024|但是，如果您想装饰一个异步方法/函数，那么更喜欢带有Async后缀的方法/函数。|1031025|1031026|1031027|1031028|1031029|有或没有惩罚|1031030|如果您不想在重试尝试之间等待(所以您希望在上次失败的尝试之后立即开始新的尝试)，那么更喜欢那些以Retry开头的方法|1031031|1031032|1031033|1031034|1031035|如果您确实希望在尝试之间等待，那么使用具有Wait前缀的方法之一。|1031036|1031037|1031038|1031039|1031040|有限或无限制的重试尝试|1031041|如果您知道要修饰的方法/函数最终会成功，但不知道经过多少次重试之后，那么更喜欢那些方法名包括Forever的方法。|1031042|1031043|1031044|1031045|1031046|如果您不知道要修饰的方法/函数最终是否会成功，并且不想无限期地等待，那么更喜欢那些而不是包含单词Forever的方法，这样您就可以指定最大的重试尝试。|1031047|1031048|1031049|1031050|1031051|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/0ef5203daae80eeda33e497b30f609b4.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/50b074e9a43d59d3fbf85002e66c82f6.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/1d77a5b03d68d4f59a5d4b15e39d591a.png|3|https://developer.qcloudimg.com/http-save/yehe-900000/772883cd2df3b346e23a9687985e79ac.png|4|https://developer.qcloudimg.com/http-save/yehe-900000/77de6f634119200ecc6aa105f392c0c9.png|5|https://developer.qcloudimg.com/http-save/yehe-900000/2877ab02982a2a649e47236d4c1f1469.png|6|https://developer.qcloudimg.com/http-save/yehe-900000/58980495a8788c660e135da733e9833b.png|7|https://developer.qcloudimg.com/http-save/yehe-900000/0717593582200eb62fd2a7c0702c488b.png|8|https://developer.qcloudimg.com/http-save/yehe-900000/2f6b8c04d1eca2aa990f1c836ae43ff9.png|9|https://developer.qcloudimg.com/http-save/yehe-900000/8f0b12c7155f2e866c4f59db57305525.png|10|https://developer.qcloudimg.com/http-save/yehe-900000/b684913a8d6b33a027cc02c6158bf260.png|11|https://developer.qcloudimg.com/http-save/yehe-900000/e0d36630d3fb630baec631268f65da87.png|12|https://developer.qcloudimg.com/http-save/yehe-900000/82b9cb7fd55373eba7dbc7d87a6c9073.png|13|https://developer.qcloudimg.com/http-save/yehe-900000/fb421f055cd5a35ed52aa14f7053463a.png|14|https://developer.qcloudimg.com/http-save/yehe-900000/5caaf987e79e203c6071e914e3adbc3a.png|15|https://developer.qcloudimg.com/http-save/yehe-900000/e4a3f4effb8456361d1e1816d126f382.png^0|0|0|0|1|0|0|0|1|1|0|0|0|J|G|0|0|1|2|0|0|J|J|0|0|1|3|0|0|0|N|3|R|5|0|0|1|4|0|0|1|5|0|0|Q|5|0|0|0|1|6|0|0|1|7|0|0|0|1C|5|0|0|0|1|8|0|0|1|9|0|0|L|4|0|0|0|1|A|0|0|1|B|0|0|0|1A|7|0|0|0|1|C|0|0|1|D|0|0|15|3|1C|7|0|0|0|1|E|0|0|1|F|0|0^^$0|@$1|2|3|4|5|6|7|36|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|37|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|38|8|@]|9|@$G|39|H|3A|1|3B]]|A|$]]|$1|I|3|E|5|F|7|3C|8|@]|9|@$G|3D|H|3E|1|3F]]|A|$]]|$1|J|3|K|5|6|7|3G|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|3H|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|3I|8|@$G|3J|H|3K|P|Q]]|9|@]|A|$]]|$1|R|3|E|5|F|7|3L|8|@]|9|@$G|3M|H|3N|1|3O]]|A|$]]|$1|S|3|K|5|6|7|3P|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|3Q|8|@$G|3R|H|3S|P|Q]]|9|@]|A|$]]|$1|V|3|E|5|F|7|3T|8|@]|9|@$G|3U|H|3V|1|3W]]|A|$]]|$1|W|3|K|5|6|7|3X|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|3Y|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|3Z|8|@$G|40|H|41|P|11]|$G|42|H|43|P|Q]]|9|@]|A|$]]|$1|12|3|E|5|F|7|44|8|@]|9|@$G|45|H|46|1|47]]|A|$]]|$1|13|3|E|5|F|7|48|8|@]|9|@$G|49|H|4A|1|4B]]|A|$]]|$1|14|3|K|5|6|7|4C|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|4D|8|@$G|4E|H|4F|P|Q]]|9|@]|A|$]]|$1|17|3|K|5|6|7|4G|8|@]|9|@]|A|$]]|$1|18|3|E|5|F|7|4H|8|@]|9|@$G|4I|H|4J|1|4K]]|A|$]]|$1|19|3|E|5|F|7|4L|8|@]|9|@$G|4M|H|4N|1|4O]]|A|$]]|$1|1A|3|K|5|6|7|4P|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|4Q|8|@]|9|@]|A|$]]|$1|1D|3|1E|5|6|7|4R|8|@$G|4S|H|4T|P|Q]]|9|@]|A|$]]|$1|1F|3|K|5|6|7|4U|8|@]|9|@]|A|$]]|$1|1G|3|E|5|F|7|4V|8|@]|9|@$G|4W|H|4X|1|4Y]]|A|$]]|$1|1H|3|E|5|F|7|4Z|8|@]|9|@$G|50|H|51|1|52]]|A|$]]|$1|1I|3|K|5|6|7|53|8|@]|9|@]|A|$]]|$1|1J|3|1K|5|6|7|54|8|@$G|55|H|56|P|Q]]|9|@]|A|$]]|$1|1L|3|K|5|6|7|57|8|@]|9|@]|A|$]]|$1|1M|3|E|5|F|7|58|8|@]|9|@$G|59|H|5A|1|5B]]|A|$]]|$1|1N|3|E|5|F|7|5C|8|@]|9|@$G|5D|H|5E|1|5F]]|A|$]]|$1|1O|3|K|5|6|7|5G|8|@]|9|@]|A|$]]|$1|1P|3|1Q|5|6|7|5H|8|@]|9|@]|A|$]]|$1|1R|3|1S|5|6|7|5I|8|@$G|5J|H|5K|P|Q]]|9|@]|A|$]]|$1|1T|3|K|5|6|7|5L|8|@]|9|@]|A|$]]|$1|1U|3|E|5|F|7|5M|8|@]|9|@$G|5N|H|5O|1|5P]]|A|$]]|$1|1V|3|E|5|F|7|5Q|8|@]|9|@$G|5R|H|5S|1|5T]]|A|$]]|$1|1W|3|K|5|6|7|5U|8|@]|9|@]|A|$]]|$1|1X|3|1Y|5|6|7|5V|8|@$G|5W|H|5X|P|11]|$G|5Y|H|5Z|P|Q]]|9|@]|A|$]]|$1|1Z|3|K|5|6|7|60|8|@]|9|@]|A|$]]|$1|20|3|E|5|F|7|61|8|@]|9|@$G|62|H|63|1|64]]|A|$]]|$1|21|3|E|5|F|7|65|8|@]|9|@$G|66|H|67|1|68]]|A|$]]|$1|22|3|K|5|6|7|69|8|@]|9|@]|A|$]]|$1|23|3|-4|5|6|7|6A|8|@]|9|@]|A|$]]]|24|$25|$5|26|27|28|A|$29|2A|2B|-4]]|2C|$5|26|27|28|A|$29|2D|2B|-4]]|2E|$5|26|27|28|A|$29|2F|2B|-4]]|2G|$5|26|27|28|A|$29|2H|2B|-4]]|2I|$5|26|27|28|A|$29|2J|2B|-4]]|2K|$5|26|27|28|A|$29|2L|2B|-4]]|2M|$5|26|27|28|A|$29|2N|2B|-4]]|2O|$5|26|27|28|A|$29|2P|2B|-4]]|2Q|$5|2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When you use Polly you have to know upfront a couple of information about your to-be-decorated method/function to be able to define the policy in the correct way.
In case retry you can use 16 different methods to cover different use cases
<a href="https://i.stack.imgur.com/Cyaof.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Cyaof.png?s=256" alt="retry methods" /></a> <a href="https://i.stack.imgur.com/h3VFA.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/h3VFA.png?s=256" alt="retry t methods" /></a>
<h3>Method or Function</h3>
If your to be decorated method does not return any value then use
<code>Policy.Handle...</code>
<a href="https://i.stack.imgur.com/0Sh6A.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0Sh6A.png?s=256" alt="retry methods for methods" /></a>
but if it returns with a specific type then prefer <code>Policy&lt;T&gt;.Handle...</code>
<a href="https://i.stack.imgur.com/zg1LZ.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zg1LZ.png?s=256" alt="retry methods for functions" /></a>
<h3>Sync or Async</h3>
If your to-be-decorated method/function is synchronous then prefer those methods which does not have <code>Async</code> suffix 
<a href="https://i.stack.imgur.com/6M3cx.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6M3cx.png?s=256" alt="sync retry methods" /></a> <a href="https://i.stack.imgur.com/pCN3T.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pCN3T.png?s=256" alt="sync retry functions" /></a>
But if you want to decorate an async method/function then prefer those with the <code>Async</code> suffix
<a href="https://i.stack.imgur.com/59fp7.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/59fp7.png?s=256" alt="async retry methods" /></a> <a href="https://i.stack.imgur.com/ykX5C.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ykX5C.png?s=256" alt="async retry functions" /></a>
<h3>With or without penalty</h3>
If you don't want to wait between retry attempts (so you want to kick off a new attempt immediately after the previous failed one) then prefer those methods which starts with <code>Retry</code>
<a href="https://i.stack.imgur.com/vzBlZ.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vzBlZ.png?s=256" alt="policy without penalty" /></a> <a href="https://i.stack.imgur.com/6llXq.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6llXq.png?s=256" alt="policy t without penalty" /></a>
If you do want to wait between attempts then use one of those methods where you have the <code>Wait</code> prefix
<a href="https://i.stack.imgur.com/Hs25c.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Hs25c.png?s=256" alt="policy with penalty" /></a> <a href="https://i.stack.imgur.com/Bbvra.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Bbvra.png?s=256" alt="policy t with penalty" /></a>
<h3>Limited or unlimited retry attempts</h3>
If you know that your to-be-decorated method/function will eventually succeed but don't know after how many retry attempts then prefer those methods where the method name include <code>Forever</code>
<a href="https://i.stack.imgur.com/vmnSU.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vmnSU.png?s=256" alt="policy unlimited attempts" /></a> <a href="https://i.stack.imgur.com/qjgst.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qjgst.png?s=256" alt="policy t unlimited attempts" /></a>
If you don't know whether your to-be-decorated method/function will succeed eventually for sure and you don't want to wait indefinitely then prefer those methods which does not include the word <code>Forever</code> so you can specific the maximum retry attempts
<a href="https://i.stack.imgur.com/V3ncT.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/V3ncT.png?s=256" alt="policy limited attempts" /></a> <a href="https://i.stack.imgur.com/VUbPV.png?s=256" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VUbPV.png?s=256" alt="policy t limited attempts" /></a>

I am working on a retry logic in a .NET Core WebAPI project. I'm using there polly where we have <code>WaitAndRetryAsync</code>, <code>WaitAndRetry</code> methods.
What is the difference between <code>WaitAndRetryAsync</code> vs <code>WaitAndRetry</code>? 
And which one should be used when?

Polly WaitAndRetryAsync vs WaitAndRetry

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在研究.NET核心WebAPI项目中的重试逻辑。我在那里使用polly，我们有WaitAndRetryAsync，WaitAndRetry方法。WaitAndRetryAsync和WaitAndRetry的区别是什么？什么时候应该使用哪一种？

问Polly WaitAndRetryAsync诉WaitAndRetry
EN

回答 1

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