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time-formatting-parsing
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go by Example မြန်မာဘာသာ: Time Formatting / Parsing</title>
<link rel=stylesheet href="site.css">
</head>
<script>
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<body>
<div class="example" id="time-formatting-parsing">
<h2><a href="./">Go by Example မြန်မာဘာသာ</a>: Time Formatting / Parsing</h2>
<table>
<tr>
<td class="docs">
<p>Go က pattern-based layout တွေကို သုံးပြီး အချိန် format လုပ်ခြင်းနဲ့ parse လုပ်ခြင်းကို ထောက်ပံ့ပေးပါတယ်။</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/9ehHdUKsS2X"><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="p">(</span>
<span class="s">"fmt"</span>
<span class="s">"time"</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>
<span class="nx">p</span> <span class="o">:=</span> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>ဒါက သက်ဆိုင်ရာ layout constant ကို သုံးပြီး အချိန်တစ်ခုကို RFC3339 အရ
format လုပ်တဲ့ အခြေခံဥပမာတစ်ခုပါ။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">t</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nf">Now</span><span class="p">()</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nf">Format</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">RFC3339</span><span class="p">))</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>အချိန် parse လုပ်တာက <code>Format</code> နဲ့ တူညီတဲ့ layout တန်ဖိုးတွေကို သုံးပါတယ်။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">t1</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nf">Parse</span><span class="p">(</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">RFC3339</span><span class="p">,</span>
<span class="s">"2012-11-01T22:08:41+00:00"</span><span class="p">)</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">t1</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>Format</code> နဲ့ <code>Parse</code> က ဥပမာပေါ် အခြေခံတဲ့ layout တွေ သုံးပါတယ်။ များသောအားဖြင့်
ဒီ layout တွေအတွက် <code>time</code> ကနေ constant တစ်ခုကို သုံးပါမယ်၊ ဒါပေမယ့်
ကိုယ်ပိုင် custom layout တွေလည်း ပေးနိုင်ပါတယ်။ Layout တွေက
ပေးထားတဲ့ အချိန်/string တစ်ခုကို format/parse လုပ်ရမယ့်ပုံစံကို ပြဖို့
<code>Mon Jan 2 15:04:05 MST 2006</code> ဆိုတဲ့ ကိုးကားအချိန်ကို သုံးရပါမယ်။
ဥပမာအချိန်က တိတိကျကျ ပြထားသလို ဖြစ်ရပါမယ်: နှစ်က 2006၊
နာရီက 15၊ အပတ်ရဲ့ရက်က တနင်္လာ၊ စသဖြင့်ပါ။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nf">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nf">Format</span><span class="p">(</span><span class="s">"3:04PM"</span><span class="p">))</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nf">Format</span><span class="p">(</span><span class="s">"Mon Jan _2 15:04:05 2006"</span><span class="p">))</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">t</span><span class="p">.</span><span class="nf">Format</span><span class="p">(</span><span class="s">"2006-01-02T15:04:05.999999-07:00"</span><span class="p">))</span>
<span class="nx">form</span> <span class="o">:=</span> <span class="s">"3 04 PM"</span>
<span class="nx">t2</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nf">Parse</span><span class="p">(</span><span class="nx">form</span><span class="p">,</span> <span class="s">"8 41 PM"</span><span class="p">)</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">t2</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>သီးသန့် ဂဏန်းဖော်ပြမှုတွေအတွက် အချိန်တန်ဖိုးထဲက ထုတ်ယူထားတဲ့
အစိတ်အပိုင်းတွေနဲ့ စံပြ string formatting ကိုလည်း သုံးနိုင်ပါတယ်။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">fmt</span><span class="p">.</span><span class="nf">Printf</span><span class="p">(</span><span class="s">"%d-%02d-%02dT%02d:%02d:%02d-00:00\n"</span><span class="p">,</span>
<span class="nx">t</span><span class="p">.</span><span class="nf">Year</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nf">Month</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nf">Day</span><span class="p">(),</span>
<span class="nx">t</span><span class="p">.</span><span class="nf">Hour</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nf">Minute</span><span class="p">(),</span> <span class="nx">t</span><span class="p">.</span><span class="nf">Second</span><span class="p">())</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>Parse</code> က ပုံစံမကျတဲ့ input ပေါ်မှာ parse လုပ်တဲ့ ပြဿနာကို
ရှင်းပြတဲ့ error တစ်ခု ပြန်ပေးပါလိမ့်မယ်။</p>
</td>
<td class="code">
<pre class="chroma">
<span class="nx">ansic</span> <span class="o">:=</span> <span class="s">"Mon Jan _2 15:04:05 2006"</span>
<span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="p">=</span> <span class="nx">time</span><span class="p">.</span><span class="nf">Parse</span><span class="p">(</span><span class="nx">ansic</span><span class="p">,</span> <span class="s">"8:41PM"</span><span class="p">)</span>
<span class="nf">p</span><span class="p">(</span><span class="nx">e</span><span class="p">)</span>
<span class="p">}</span>
</pre>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code">
<pre class="chroma"><span class="gp">$</span> go run time-formatting-parsing.go
<span class="go">2014-04-15T18:00:15-07:00
</span><span class="go">2012-11-01 22:08:41 +0000 +0000
</span><span class="go">6:00PM
</span><span class="go">Tue Apr 15 18:00:15 2014
</span><span class="go">2014-04-15T18:00:15.161182-07:00
</span><span class="go">0000-01-01 20:41:00 +0000 UTC
</span><span class="go">2014-04-15T18:00:15-00:00
</span><span class="go">parsing time "8:41PM" as "Mon Jan _2 15:04:05 2006": ...</span></pre>
</td>
</tr>
</table>
<p class="next">
နောက်ဥပမာ: <a href="random-numbers">Random Numbers</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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