擅长:python、mysql、java
<p>您需要以某种方式处理异常。一种方法是不断地问:</p>
<pre><code>try:
grossCheck = int(input("How much? (figures only pls.)\n"))
except ValueError:
while True:
try:
grossCheck = int(input("How much? (FIGURES ONLY PLS.)\n"))
break
except ValueError:
pass
</code></pre>