https://www.yfrobot.com.cn/wiki/index.php?action=history&feed=atom&title=ReturnReturn - 版本历史2026-05-07T20:32:28Z本wiki的该页面的版本历史MediaWiki 1.22.6https://www.yfrobot.com.cn/wiki/index.php?title=Return&diff=512&oldid=prevAdmin：以“ {| border="0" cellpadding="20" width="100%" |- |width="100%" valign="top" align="left"| Terminate a function and return a value from a function to the calling func...”为内容创建页面2015-07-31T12:16:53Z<p>以“ {| border="0" cellpadding="20" width="100%" |- |width="100%" valign="top" align="left"| Terminate a function and return a value from a function to the calling func...”为内容创建页面</p>
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Terminate a function and return a value from a function to the calling function, if desired.<br />
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<font color="orange" size="+1">'''语法'''</font><br />
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<pre style="color:dimgray"><br />
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return;<br />
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return value; // both forms are valid<br />
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</pre><br />
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<font color="orange" size="+1">'''参数'''</font><br />
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value: any variable or constant type<br />
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<font color="orange" size="+1">'''示例'''</font><br />
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A function to compare a sensor input to a threshold<br />
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<pre style="color:dimgray"><br />
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int checkSensor(){ <br />
if (analogRead(0) > 400) {<br />
return 1;<br />
else{<br />
return 0;<br />
}<br />
}<br />
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</pre><br />
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The return keyword is handy to test a section of code without having to "comment out" large sections of possibly buggy code.<br />
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<pre style="color:dimgray"><br />
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void loop(){<br />
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// brilliant code idea to test here<br />
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return;<br />
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// the rest of a dysfunctional sketch here<br />
// this code will never be executed<br />
}<br />
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</pre><br />
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|}<br />
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