擅长:python、mysql、java
<p>在执行任何其他操作之前,您需要一个条件语句:</p>
<pre><code>line = ' '
while line:
line = input('Line: ')
if not line:
break # break out of the loop before raising any KeyErrors
phonic = line.split()
start = phonic[0]
start_4 = phonic [3]
a = start[0]
if start_4.startswith(a):
print('Good!')
else:
print("That's not right!")
</code></pre>
<p>请注意,<code>while line != ''</code>可以简单地缩短为<code>while line</code>,因为<code>''</code>被认为是<code>False</code>,所以<code>!= False</code>是<code>== True</code>,这是可以消除的。你知道吗</p>