blocks|key|4083085|text|%7C=是将两个值进行OR运算并将结果赋给第一个变量的快捷方式。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4083086|xr.Settings.ValidationFlags+%7C=+XmlSchemaValidationFlags.ReportValidationWarnings;|code-block|syntax|javascript|4083087|等同于：|4083088|xr.Settings.ValidationFlags+=+xr.Settings.ValidationFlags+%7C+XmlSchemaValidationFlags.ReportValidationWarnings;|4083089|%7C是C#中的OR运算符，因此上面的代码有效地设置了值xr.Settings.ValidationFlags上的ReportValidationWarnings标志。|4083090|entityMap^0|0|2|0|0|0|0|0|1|Q|R|1J|O|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|R|$]]

<code>|=</code> is a shortcut for OR'ing two values together and assigning the result to the first variable.

<pre><code>xr.Settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
</code></pre>

Is equivalent to:

<pre><code>xr.Settings.ValidationFlags = xr.Settings.ValidationFlags | XmlSchemaValidationFlags.ReportValidationWarnings;
</code></pre>

<code>|</code> is the OR operator in C#, so the code above effectively sets the <code>ReportValidationWarnings</code> flag on the value <code>xr.Settings.ValidationFlags</code>.

blocks|key|733258|text|在本例中，您将在ValidationFlags中设置XmlSchemaValidationFlags.ReportValidationWarnings标志。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|733259|%7C=通常是位or运算符，在Flags的情况下，它用于设置标志。|733260|entityMap^0|8|F|Q|1D|0|0|2|6|2|D|5|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

In this case you are setting <code>XmlSchemaValidationFlags.ReportValidationWarnings</code> flag in your <code>ValidationFlags</code>.

<code>|=</code> is generally bitwise <code>or</code> operator, in case of <code>Flags</code> it's used to set flag.

blocks|key|4083109|text|这是布尔OR-Equals。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4083110|等同于：|4083111|xr.Settings.ValidationFlags+=+xr.Settings.ValidationFlags+%7C+XmlSchemaValidationFlags.ReportValidationWarnings;|code-block|syntax|javascript|4083112|这确保了XmlSchemaValidationFlags.ReportValidationWarnings中的位被设置。|offset|length|style|CODE|4083113|entityMap^0|0|0|0|4|1D|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

This is boolean OR-Equals.

Equivilent to:

<pre><code>xr.Settings.ValidationFlags = xr.Settings.ValidationFlags | XmlSchemaValidationFlags.ReportValidationWarnings;
</code></pre>

Which is ensuring that the bits in <code>XmlSchemaValidationFlags.ReportValidationWarnings</code> are set.

blocks|key|4564947|text|这是一个复合赋值。从本质上讲，您正在做的是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4564948|xr.Settings.ValidationFlags+=+
++++xr.Settings.ValidationFlags+%7C+
++++XmlSchemaValidationFlags.ReportValidationWarnings;|code-block|syntax|javascript|4564949|这实质上会将XmlSchemaValidationFlags.ReportValidationWarnings添加到包含在xr.Settings.ValidationFlags中的标志集。|offset|length|style|CODE|4564950|entityMap^0|0|0|6|1D|1P|R|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

That is a compound assignment. Essentially you are doing:

<pre><code>xr.Settings.ValidationFlags = 
 xr.Settings.ValidationFlags | 
 XmlSchemaValidationFlags.ReportValidationWarnings;
</code></pre>

Which will essentially add <code>XmlSchemaValidationFlags.ReportValidationWarnings</code> to the set of flags contained in <code>xr.Settings.ValidationFlags</code>.

blocks|key|130822|text|正如其他人提到的，a+%7C=+b是a=a%7C+b的简写，就像%2B=+b是a=a%2Bb的缩写一样。现在%7C运算符做什么？它可以是重载的，但它的一般用法是按位OR。它类似于%7C%7C运算符，但它是逐位工作的(将每一位看作一个布尔值)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|130823|false+%7C%7C+true为true|130824|0100+%7C+0110是0111|130825|最后一件事是，传递一组布尔标志的经典方法之一是将它们编码为整数。单个32位整数可以保存32个单独的标志，每个位一个。要设置标志，请将相应的位设置为1。|130826|所以0000没有设置标志，而1001在位置1和4设置了标志。|130827|那么%7C=就是一种设置特定标志的便捷方法。|130828|int+my_flags+=+0；|130829|my_flag+%7C=+validate_flag；|130830|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

As others have mentioned, a |= b is shorthand for a = a | b, in much the same way as a += b is short for a = a + b.
Now what does the | operator do? It can be overloaded, but the general use of it is bit-wise OR. It's similar to the || operator, but it works on a bit by bit basis (think of each bit as a boolean):

false || true is true

0100 | 0110 is 0111

Then the last thing is that one of the classic ways to pass a bunch of boolean flags is to encode them in an integer. A single 32 bit integer can hold 32 individual flags, one per bit. to set a flag, you set the corresponding bit to 1.

So 0000 has no flags set, while 1001 has flags at position 1 and 4 set.

Then |= is a convenient way to set a specific flag.

int my_flags = 0;

my_flag |= validate_flag;

blocks|key|4565049|text|driis'+answer是正确的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4565050|%7C=与在条件测试中使用%7C运算符相同，如以下示例所示：|style|CODE|4565051|xr.Settings.ValidationFlags+%7C=+XmlSchemaValidationFlags.ReportValidationWarnings|code-block|syntax|javascript|4565052|在语义上与相同|BOLD|4565053|xr.Settings.ValidationFlags+=+xr.Settings.ValidationFlags+%7C+XmlSchemaValidationFlags.ReportValidationWarnings|4565054|关于%7C与%7C%7C的其他说明|4565055|我发现的另一个有用的小技巧是+(%7C)和+(%7C%7C)之间的区别：|4565056|逻辑OR将始终计算两个操作数，即使第一个操作数为true。如果第一个操作数为false，则条件OR仅计算第二个操作数，如果不需要执行第二个操作数来确定最终结果，则有效地缩短了计算过程。|4565057|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/13958419/1304050^0|0|D|0|0|0|2|B|1|0|0|0|5|0|0|2|1|4|2|0|G|1|L|2|0|O|4|12|5|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@$A|1A|B|1B|F|G]|$A|1C|B|1D|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|1E|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1F|8|@$A|1G|B|1H|F|O]]|9|@]|C|$]]|$1|P|3|Q|5|J|7|1I|8|@]|9|@]|C|$K|L]]|$1|R|3|S|5|6|7|1J|8|@$A|1K|B|1L|F|G]|$A|1M|B|1N|F|G]]|9|@]|C|$]]|$1|T|3|U|5|6|7|1O|8|@$A|1P|B|1Q|F|G]|$A|1R|B|1S|F|G]]|9|@]|C|$]]|$1|V|3|W|5|6|7|1T|8|@$A|1U|B|1V|F|G]|$A|1W|B|1X|F|G]]|9|@]|C|$]]|$1|X|3|-4|5|6|7|1Y|8|@]|9|@]|C|$]]]|Y|$Z|$5|10|11|12|C|$13|14]]]]

<a href="https://stackoverflow.com/a/13958419/1304050">driis' answer</a> is correct.

<code>|=</code> is the same as using the <code>|</code> operator in a conditional test, as in the following examples:

<pre><code>xr.Settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings
</code></pre>

is semantically identical to

<pre><code>xr.Settings.ValidationFlags = xr.Settings.ValidationFlags | XmlSchemaValidationFlags.ReportValidationWarnings
</code></pre>

<h2>Additional note about <code>|</code> vs <code>||</code></h2>

One additional tidbit I found to be useful was the difference between the <a href="https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/boolean-logical-operators#logical-or-operator-" rel="nofollow noreferrer">logical OR</a> (<code>|</code>) and the <a href="https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/boolean-logical-operators#conditional-logical-or-operator-" rel="nofollow noreferrer">conditional OR</a> (<code>||</code>):

The logical OR will always evaluate both operands, even if the first is <code>true</code>. The conditional OR will only evaluate the second if the first is <code>false</code>, effectively short-circuiting if the execution of the second operand is unnecessary to determine the final result.

If I'm using something like this:

<pre><code>xr.Settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
</code></pre>

What precisely is the <code>|=</code> accomplishing?

What is happening when you use the |= operator in C#?

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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如果我使用的是这样的东西：xr.Settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;|=到底完成了什么？

问在C#中使用|=运算符时会发生什么情况？
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问在C#中使用|=运算符时会发生什么情况？
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