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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go by Example မြန်မာဘာသာ: Number Parsing</title>
<link rel=stylesheet href="site.css">
</head>
<script>
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if (e.key == "ArrowLeft") {
window.location.href = 'random-numbers';
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if (e.key == "ArrowRight") {
window.location.href = 'url-parsing';
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<body>
<div class="example" id="number-parsing">
<h2><a href="./">Go by Example မြန်မာဘာသာ</a>: Number Parsing</h2>
<table>
<tr>
<td class="docs">
<p>String တွေကနေ နံပါတ်တွေကို parse လုပ်တာဟာ ပရိုဂရမ်အများစုမှာ အခြေခံကျပေမယ့် အဖြစ်များတဲ့ လုပ်ငန်းတစ်ခုပါ။
Go မှာ အဲဒါကို ဘယ်လိုလုပ်မလဲဆိုတာ ဒီမှာရှိပါတယ်။</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/a_fWMdgxAiS"><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">
<p>Built-in package ဖြစ်တဲ့ <code>strconv</code> က နံပါတ် parsing ကို ပေးပါတယ်။</p>
</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">"strconv"</span>
<span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>ParseFloat</code> မှာ ဒီ <code>64</code> က ဘယ်နှစ် bit တိကျမှုနဲ့ parse လုပ်မလဲဆိုတာကို ပြောပြပါတယ်။</p>
</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">
</td>
<td class="code leading">
<pre class="chroma"> <span class="nx">f</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">ParseFloat</span><span class="p">(</span><span class="s">"1.234"</span><span class="p">,</span> <span class="mi">64</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">f</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>ParseInt</code> မှာ <code>0</code> က string ကနေ အခြေကိန်းကို မှန်းဆဖို့ ဆိုလိုပါတယ်။
<code>64</code> က ရလဒ်က 64 bit ထဲ ဝင်ဆံ့ရမယ်လို့ သတ်မှတ်ပါတယ်။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">i</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">ParseInt</span><span class="p">(</span><span class="s">"123"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</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">i</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>ParseInt</code> က ဆယ့်ခြောက်လုံးစနစ် ဖော်မတ်နဲ့ နံပါတ်တွေကို အသိအမှတ်ပြုပါတယ်။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">d</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">ParseInt</span><span class="p">(</span><span class="s">"0x1c8"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</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">d</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>ParseUint</code> လည်း ရနိုင်ပါတယ်။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">u</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">ParseUint</span><span class="p">(</span><span class="s">"789"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">64</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">u</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p><code>Atoi</code> က အခြေ-10 <code>int</code> parsing အတွက် အဆင်ပြေတဲ့ function တစ်ခုပါ။</p>
</td>
<td class="code leading">
<pre class="chroma">
<span class="nx">k</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">Atoi</span><span class="p">(</span><span class="s">"135"</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">k</span><span class="p">)</span>
</pre>
</td>
</tr>
<tr>
<td class="docs">
<p>Parse function တွေက မှားယွင်းတဲ့ input ပေါ်မှာ error တစ်ခု ပြန်ပေးပါတယ်။</p>
</td>
<td class="code">
<pre class="chroma">
<span class="nx">_</span><span class="p">,</span> <span class="nx">e</span> <span class="o">:=</span> <span class="nx">strconv</span><span class="p">.</span><span class="nf">Atoi</span><span class="p">(</span><span class="s">"wat"</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">e</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 number-parsing.go
<span class="go">1.234
</span><span class="go">123
</span><span class="go">456
</span><span class="go">789
</span><span class="go">135
</span><span class="go">strconv.ParseInt: parsing "wat": invalid syntax</span></pre>
</td>
</tr>
<tr>
<td class="docs">
<p>နောက်တစ်ဆင့်မှာတော့ နောက်ထပ် အသုံးများတဲ့
parsing လုပ်ငန်းတစ်ခုဖြစ်တဲ့ URL တွေကို ကြည့်ကြပါမယ်။</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
နောက်ဥပမာ: <a href="url-parsing">URL Parsing</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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