擅长:python、mysql、java
<pre><code>weekly_string = weeklydic[key]
try:
weekly_float = float(weekly_string)
except ValueError as e:
print('error={error}, key={key}, value="{value}"'.format(
error=e, key=key, value=weekly_string))
weekly_float = 0.0
</code></pre>
<p>之前只需执行一次,而不是对<code>if: else:</code>的两个分支执行此操作</p>