blocks|key|1172835|text|正如其他人所说，%25%25将转义%25。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1172836|但是，请注意，您永远不应该这样做：|1172837|char+c[100];
char+*c2;
...
printf(c);+/*+OR+*/
printf(c2);|code-block|syntax|javascript|1172838|当你必须打印一个字符串时，总是使用|1172839|printf("%25s",+c)|1172840|以防止嵌入的%25导致问题(内存冲突、segmentation+faults等)。|offset|length|1172841|entityMap|0|LINK|mutability|MUTABLE|url|https://duckduckgo.com/html/?q=Wikipedia%2520segmentation%2520faults^0|0|0|0|0|0|H|J|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|13|8|@]|9|@$O|14|P|15|1|16]]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

As others have said, %% will escape the %.
Note, however, that you should never do this:
<pre><code>char c[100];
char *c2;
...
printf(c); /* OR */
printf(c2);
</code></pre>
Whenever you have to print a string, always, always, always print it using
<pre><code>printf(&quot;%s&quot;, c)
</code></pre>
to prevent an embedded % from causing problems (memory violations, <a href="https://duckduckgo.com/html/?q=Wikipedia%20segmentation%20faults" rel="nofollow noreferrer">segmentation faults</a>, etc.).

blocks|key|1172779|text|如果字符串中没有格式，可以使用puts+(或fputs)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1172780|puts("hello%25");|code-block|syntax|javascript|1172781|如果字符串中有格式：|1172782|printf("%25.2f%25%25",+53.2);|1172783|正如注释中所指出的，puts会将\n附加到输出，而fputs不会。|1172784|entityMap|0|LINK|mutability|MUTABLE|url|http://www.opengroup.org/onlinepubs/009695399/functions/fputs.html|1^0|F|4|M|5|F|4|0|M|5|1|0|0|0|0|A|4|G|2|P|5|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@$9|14|A|15|1|16]|$9|17|A|18|1|19]]|E|$]]|$1|F|3|G|5|H|7|1A|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1B|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|1C|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1D|8|@$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]|$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]|Y|$5|T|U|V|E|$W|X]]]]

If there are no formats in the string, you can use <a href="http://www.opengroup.org/onlinepubs/009695399/functions/fputs.html" rel="noreferrer"><code>puts</code></a> (or <a href="http://www.opengroup.org/onlinepubs/009695399/functions/fputs.html" rel="noreferrer"><code>fputs</code></a>):

<pre><code>puts("hello%");
</code></pre>

if there is a format in the string:

<pre><code>printf("%.2f%%", 53.2);
</code></pre>

As noted in the comments, <code>puts</code> appends a <code>\n</code> to the output and <code>fputs</code> does not.

blocks|key|1172730|text|带着它自己。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1172731|printf("hello%25%25");+/*+like+this+*/|code-block|syntax|javascript|1172732|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

With itself...

<pre><code>printf("hello%%"); /* like this */
</code></pre>

blocks|key|1388101|text|使用double+%25%25|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1388102|printf("hello%25%25");|code-block|syntax|javascript|1388103|entityMap|0|LINK|mutability|MUTABLE|url|http://www.cplusplus.com/reference/cstdio/printf/^0|9|2|2|9|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Use a <a href="http://www.cplusplus.com/reference/cstdio/printf/" rel="nofollow noreferrer">double <code>%%</code></a>:
<pre><code>printf(&quot;hello%%&quot;);
</code></pre>

blocks|key|1172877|text|如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1172878|printf("hello%25%25");
//-----------%5E%5E+inside+printf,+use+two+percent+signs+together|code-block|syntax|javascript|1172879|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Like this:

<pre><code>printf("hello%%");
//-----------^^ inside printf, use two percent signs together
</code></pre>

blocks|key|1388263|text|您使用的格式说明符不正确。您应该使用%25%25来打印%25。你的代码应该是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1388264|printf("hello%25%25");++|code-block|syntax|javascript|1388265|阅读更多all+format+specifiers+used+in+C。|1388266|entityMap|0|LINK|mutability|MUTABLE|url|http://codeforwin.org/2015/05/list-of-all-format-specifiers-in-c-programming.html^0|I|2|N|1|0|0|4|V|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

You are using the incorrect format specifier. You should use <code>%%</code> for printing <code>%</code>. Your code should be:
<pre><code>printf(&quot;hello%%&quot;); 
</code></pre>
Read more <a href="http://codeforwin.org/2015/05/list-of-all-format-specifiers-in-c-programming.html" rel="nofollow noreferrer">all format specifiers used in C</a>.

blocks|key|1388233|text|C中的反斜杠用于转义字符串中的字符。字符串不会将%25识别为特殊字符，因此不需要转义。printf则是另一回事:使用%25%25打印一个%25。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1388234|entityMap^0|O|1|15|6|1K|2|1Q|1|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

The backslash in C is used to escape characters in strings. Strings would not recognize <code>%</code> as a special character, and therefore no escape would be necessary. <code>printf</code> is another matter: use <code>%%</code> to print one <code>%</code>.

blocks|key|1388251|text|是的，使用printf("hello%25%25");就完成了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1388252|entityMap^0|5|I|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Yup, use <code>printf(&quot;hello%%&quot;);</code> and it's done.

blocks|key|1172976|text|您可以简单地使用两次%25，即"%25%25"|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1172977|示例：|1172978|printf("You+gave+me+12.3+%25%25+of+profit");|code-block|syntax|javascript|1172979|entityMap^0|A|1|D|4|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

You can simply use <code>%</code> twice, that is <code>"%%"</code>

Example:

<pre><code>printf("You gave me 12.3 %% of profit");
</code></pre>

blocks|key|1173069|text|双'%25‘也适用于“.Format(Add87c).示例(使用iDrawApertureMask+==+87，fCornerRadMask+==+0.05.)：csCurrentLine.Format("\%25ADD%252d%25C,%256.4f*\%25",iDrawApertureMask,fCornerRadMask)+;给出(字符串内容in)+csCurrentLine；”%25…，0.0500*%25“的所需和期望值|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1173070|entityMap^0|27|26|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

The double '%' works also in ".Format(…).
Example (with iDrawApertureMask == 87, fCornerRadMask == 0.05):
<code>csCurrentLine.Format("\%ADD%2d%C,%6.4f*\%",iDrawApertureMask,fCornerRadMask) ;</code>
gives the desired and expected value of (string contents in) csCurrentLine;
 "%ADD87C, 0.0500*%"

How do you escape the % sign when using <code>printf</code> in C?

<pre><code>printf("hello\%"); /* not like this */
</code></pre>

How to escape the % (percent) sign in C's printf

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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在C中使用printf时，如何转义%符号？printf("hello\%"); /* not like this */

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