练习11: 提问–笨方法学ruby在线

我已经出过很多有关于打印的练习，让你习惯写出简单的东西，但简单的东西都有点无聊，我们现在要做的的事是把数据(data)读到你的程序里面去。这对你可能会有点难度，你可能一下子搞不明白，不过相信我，无论如何先把练习做了再说。只要做几道练习你就明白了。

一般软体做的事情主要就是下面几件：

1. 接受人的输入。
2. 改变输入值。
3. 打印改变了的值。

到目前为止你只做了打印，但还不会接受或修改人的输入。你还不知道「输入(input)」是什么意思。闲话少说，我们还是开始做点练习看你能不能明白，下一道练习里面我们将会有更详细的解释。

print <span class="s2">"How old are you? "</span> <span class="nv">age</span> <span class="o">=</span> gets.chomp<span class="o">()</span> print <span class="s2">"How tall are you? "</span> <span class="nv">height</span> <span class="o">=</span> gets.chomp<span class="o">()</span> print <span class="s2">"How much do you weigh? "</span> <span class="nv">weight</span> <span class="o">=</span> gets.chomp<span class="o">()</span> puts <span class="s2">"So, you're #{age} old, #{height} tall and #{weight} heavy."</span>

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print <span class="s2">"How old are you? "</span> <span class="nv">age</span> <span class="o">=</span> gets.chomp<span class="o">()</span> print <span class="s2">"How tall are you? "</span> <span class="nv">height</span> <span class="o">=</span> gets.chomp<span class="o">()</span> print <span class="s2">"How much do you weigh? "</span> <span class="nv">weight</span> <span class="o">=</span> gets.chomp<span class="o">()</span>   puts <span class="s2">"So, you're #{age} old, #{height} tall and #{weight} heavy."</span>

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