entityMap|blocks|key|37qp4|text|一种方法是在ParseAll方法中添加try+catch：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|501fn|ParsingAll()
{
+++try
+++{

+++}
+++catch(Exception+e)
+++{
+++}
}|code-block|syntax|javascript|7i31s|你可以正常地调用它们：|cdut|id_source+=+await+ParsingAll(0,+"#adv_id",+"");+++
foto_path+=+await+ParsingAll(1,+"img[id='print_user_photo']",+"src");
position+=+await+ParsingAll(0,+"div.title.adv-title.newTitle+>+h1",+"");|7lfu1|并返回一些状态和结果，以告知它是否成功。|bc1mf|或者您需要将它们分别包装起来，以便在该语句失败的情况下执行下一条语句：|5v6ev|try
{
++++foto_path+=+await+ParsingAll(1,+"img[id='print_user_photo']",+"src");
}
catch(Exception+e)
{
}

position+=+await+ParsingAll(0,+"div.title.adv-title.newTitle+>+h1",+"");|4sf4v|但这一切都取决于程序要求，流程将如何进行。|atmtb^0|6|8|J|3|N|5|0|0|0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|Y|9|@$A|Z|B|10|C|D]|$A|11|B|12|C|D]|$A|13|B|14|C|D]]|E|@]|F|$]]|$2|G|4|H|6|I|8|15|9|@]|E|@]|F|$J|K]]|$2|L|4|M|6|7|8|16|9|@]|E|@]|F|$]]|$2|N|4|O|6|I|8|17|9|@]|E|@]|F|$J|K]]|$2|P|4|Q|6|7|8|18|9|@]|E|@]|F|$]]|$2|R|4|S|6|7|8|19|9|@]|E|@]|F|$]]|$2|T|4|U|6|I|8|1A|9|@]|E|@]|F|$J|K]]|$2|V|4|W|6|7|8|1B|9|@]|E|@]|F|$]]|$2|X|4|-4|6|7|8|1C|9|@]|E|@]|F|$]]]]

One way is that to add <code>try</code> <code>catch</code> inside your <code>ParseAll</code> method :

<pre><code>ParsingAll()
{
 try
 {

 }
 catch(Exception e)
 {
 }
}
</code></pre>

and you can call them normally:

<pre><code>id_source = await ParsingAll(0, "#adv_id", ""); 
foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");
position = await ParsingAll(0, "div.title.adv-title.newTitle &gt; h1", "");
</code></pre>

and return some status with result to tell if it was successful or not. 

Or you will need to wrap it separately each of them so that the next statements should execute in case of that one fails:

<pre><code>try
{
 foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");
}
catch(Exception e)
{
}

position = await ParsingAll(0, "div.title.adv-title.newTitle &gt; h1", "");
</code></pre>

But this all depends on the program requirements how the flow will go.

entityMap|blocks|key|vig3|text|要做到这一点，唯一的方法是将这些行拆分为单独的try...catch子句：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|18jr8|try
{
+++id_source+=+await+ParsingAll(0,+"#adv_id",+"");+++
catch+(Exception+ex)
{
++++Error?.Invoke(id_source+%2B+"-+Error+-+");++++
}
try
{
+++foto_path+=+await+ParsingAll(1,+"img[id='print_user_photo']",+"src");+
catch+(Exception+ex)
{
++++Error?.Invoke(id_source+%2B+"-+Error+-+");++++
}
…|code-block|syntax|javascript|77n88^0|N|B|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|M|9|@$A|N|B|O|C|D]]|E|@]|F|$]]|$2|G|4|H|6|I|8|P|9|@]|E|@]|F|$J|K]]|$2|L|4|-4|6|7|8|Q|9|@]|E|@]|F|$]]]]

The only way to do so is to split the lines into separate <code>try...catch</code> clauses:

<pre><code>try
{
 id_source = await ParsingAll(0, "#adv_id", ""); 
catch (Exception ex)
{
 Error?.Invoke(id_source + "- Error - "); 
}
try
{
 foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src"); 
catch (Exception ex)
{
 Error?.Invoke(id_source + "- Error - "); 
}
…
</code></pre>

entityMap|blocks|key|5dlov|text|您可以只缩小try-catch块的范围：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|d21t3|解析器代码可用|4i3d|//+May+need+its+own+try-catch+blcok
id_source+=+await+ParsingAll(0,+"#adv_id",+"");

try
{+++
++++foto_path+=+await+ParsingAll(1,+"img[id='print_user_photo']",+"src");
catch+(Exception+ex)
{
++++Error?.Invoke(id_source+%2B+"-+Error+-+");++++
}

//+May+need+its+own+try-catch+blcok
position+=+await+ParsingAll(0,+"div.title.adv-title.newTitle+>+h1",+"");|code-block|syntax|javascript|584n9^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|L|9|@]|A|@]|B|$]]|$2|E|4|F|6|G|8|M|9|@]|A|@]|B|$H|I]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

You could just narrow the try-catch block:

Parser code is available

<pre><code>// May need its own try-catch blcok
id_source = await ParsingAll(0, "#adv_id", "");

try
{ 
 foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");
catch (Exception ex)
{
 Error?.Invoke(id_source + "- Error - "); 
}

// May need its own try-catch blcok
position = await ParsingAll(0, "div.title.adv-title.newTitle &gt; h1", "");
</code></pre>

entityMap|blocks|key|3kj8h|text|从例程中获取foto_path值，然后在ParsingAll例程中使用Try+catch或put+try+catch。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|6rh6b^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

Get foto_path value from a routine, than has Try catch
Or
put try catch in the ParsingAll routine.

entityMap|blocks|key|627nu|text|您可以考虑捕获异步ParsingAll方法中的错误，并仅从该方法返回有效输出。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|ajl09^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

You may consider to catch the error within the async ParsingAll method and return only a valid output from that method.

entityMap|blocks|key|2gkih|text|使用finally代码块怎么样?不管发生什么异常，它都会执行。我认为这更像是一种变通方法，但最好的解决方案应该是根据您的情况在ParsingAll()方法中处理它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|f435v|try
{
+++id_source+=+await+ParsingAll(0,+"#adv_id",+"");+++
+++foto_path+=+await+ParsingAll(1,+"img[id='print_user_photo']",+"src");
}
catch+(Exception+ex)
{
++++Error?.Invoke(id_source+%2B+"-+Error+-+");++++
}
finally
{
++++position+=+await+ParsingAll(0,+"div.title.adv-title.newTitle+>+h1",+"");
}|code-block|syntax|javascript|173jh^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|I|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|J|9|@]|A|@]|B|$F|G]]|$2|H|4|-4|6|7|8|K|9|@]|A|@]|B|$]]]]

How about using the finally block which will always execute irrespective of exception occurred. I consider this more of a workaround but best solution should be handle it in ParsingAll() method for your situation.

<pre><code>try
{
 id_source = await ParsingAll(0, "#adv_id", ""); 
 foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");
}
catch (Exception ex)
{
 Error?.Invoke(id_source + "- Error - "); 
}
finally
{
 position = await ParsingAll(0, "div.title.adv-title.newTitle &gt; h1", "");
}
</code></pre>

Parser code is available 

<pre><code>try
{
 id_source = await ParsingAll(0, "#adv_id", ""); 
 foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");
 position = await ParsingAll(0, "div.title.adv-title.newTitle &gt; h1", "");
catch (Exception ex)
{
 Error?.Invoke(id_source + "- Error - "); 
} 
</code></pre>

How to do if an error occurs in the string "foto_path", then after processing the try / catch error, the program continued to work and began to execute the string "position"?

How to make try / catch continue to work after an error?

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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 解析器代码可用 try{   id_source = await ParsingAll(0, "#adv_id", "");      foto_path = await ParsingAll(1, "img[id='print_user_photo']", "src");   position = await Pa...

问如何让try / catch在出错后继续工作？
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问如何让try / catch在出错后继续工作？EN