练习2 注释和井号–笨方法学ruby在线

程序里的注释是很重要的。它们可以用自然语言告诉你某段程序代码的功能是什么。在你想要临时移除一段程序代码时，你还可以用注释的方式将这段程序代码临时禁用。接下来的练习将让你学会注释：

<span class="c"># A comment, this is so you can read your program later.</span> <span class="c"># Anything after the # is ignored by Ruby.</span> puts <span class="s2">"I could have code like this."</span> <span class="c"># and the comment after is ignored</span> <span class="c"># You can also use a comment to "disable" or comment out a piece of code:</span> <span class="c"># print "This won't run."</span> puts <span class="s2">"This will run."</span>

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<span class="c"># A comment, this is so you can read your program later.</span> <span class="c"># Anything after the # is ignored by Ruby.</span>   puts <span class="s2">"I could have code like this."</span> <span class="c"># and the comment after is ignored</span>   <span class="c"># You can also use a comment to "disable" or comment out a piece of code:</span> <span class="c"># print "This won't run."</span>   puts <span class="s2">"This will run."</span>

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