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multiple-return-values.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go by Example မြန်မာဘာသာ: Multiple Return Values</title>
<link rel=stylesheet href="site.css">
</head>
<script>
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<body>
<div class="example" id="multiple-return-values">
<h2><a href="./">Go by Example မြန်မာဘာသာ</a>: Multiple Return Values</h2>
<table>
<tr>
<td class="docs">
<p>Go မှာ built-in <em>multiple return values</em> ကို support လုပ်ပါတယ်။
ဒီ feature ကို Go မှာအတော်လေးအသုံးပြုပါတယ်၊ ဥမမာဆိုရင် function မှာ
result ကော error ကောပြန်တာမျိုးပေါ့။</p>
</td>
<td class="code empty leading">
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<a href="https://go.dev/play/p/idodCpWnwGg"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<pre class="chroma"><span class="kn">package</span> <span class="nx">main</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<pre class="chroma"><span class="kn">import</span> <span class="s">"fmt"</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>ဒီ function မှာ <code>(int, int)</code> ဆိုတာက ဒီ function က <code>int</code>
၂ ခုကို return ပြန်တယ်ဆိုတဲ့အဓိပ္ပါယ်ပါ။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="kd">func</span> <span class="nf">vals</span><span class="p">()</span> <span class="p">(</span><span class="kt">int</span><span class="p">,</span> <span class="kt">int</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">7</span>
<span class="p">}</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<pre class="chroma"><span class="kd">func</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>ဒီမှာ return ပြန်လာတဲ့ values ၂ ခုကို <em>multiple assignment</em> နဲ့
assign လုပ်ထားတာပေါ့။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">a</span><span class="p">,</span> <span class="nx">b</span> <span class="o">:=</span> <span class="nf">vals</span><span class="p">()</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="nx">a</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="nx">b</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>return ပြန်လာတဲ့ ၂ ခုထဲကတခုကိုဘဲယူချင်တယ်ဆို
<code>_</code> ကိုသုံးလို့ရတယ်။</p>
</td>
<td class="code">
<pre class="chroma">
<span class="nx">_</span><span class="p">,</span> <span class="nx">c</span> <span class="o">:=</span> <span class="nf">vals</span><span class="p">()</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="nx">c</span><span class="p">)</span>
<span class="p">}</span>
</pre>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code leading">
<pre class="chroma"><span class="gp">$</span> go run multiple-return-values.go
<span class="go">3
</span><span class="go">7
</span><span class="go">7</span></pre>
</td>
</tr>
<tr>
<td class="docs">
<p>Accepting a variable number of arguments is another nice
feature of Go functions; we’ll look at this next.</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
နောက်ဥပမာ: <a href="variadic-functions">Variadic Functions</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> နှင့် <a href="https://eli.thegreenplace.net">Eli Bendersky</a> | <a href="https://github.com/mmcgrana/gobyexample">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
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