擅长:python、mysql、java
<p>可以使用str()方法,并在布尔检查中使用None行为为false的属性:</p>
<pre><code>d['AddressStr'] = str(d["[zipcode]"] or '') + \
str(d["[street_name]"] or '') + \
str(d["[primary_number]"] or '') + \
str(d["[secondary_number]"] or '') + \
str(d["[street_predirection]"] or '') + \
str(d["[street_postdirection]"] or '') + \
str(d["[street_suffix]"] or '')
</code></pre>