这里是你接下要写的作业,这段介绍了if-statement
(if 语句)。把这段输入进去,让它能够正确执行。然后我们看看你是否有收获。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
<span class="nv">people</span> <span class="o">=</span> 20 <span class="nv">cats</span> <span class="o">=</span> 30 <span class="nv">dogs</span> <span class="o">=</span> 15 <span class="k">if</span> people < cats puts <span class="s2">"Too many cats! The world is doomed!"</span> end <span class="k">if</span> people > cats puts <span class="s2">"Not many cats! The world is saved!"</span> end <span class="k">if</span> people < dogs puts <span class="s2">"The world is drooled on!"</span> end <span class="k">if</span> people > dogs puts <span class="s2">"The world is dry!"</span> end dogs +<span class="o">=</span> 5 <span class="k">if</span> people ><span class="o">=</span> dogs puts <span class="s2">"People are greater than or equal to dogs."</span> end <span class="k">if</span> people <<span class="o">=</span> dogs puts <span class="s2">"People are less than or equal to dogs."</span> end <span class="k">if</span> <span class="nv">people</span> <span class="o">==</span> dogs puts <span class="s2">"People are dogs."</span> end |
