擅长:python、mysql、java
<ol>
<li><p>加载<code>json</code>字符串</p>
<pre><code>json_data = json.loads(json_string)
</code></pre></li>
<li><p>迭代对象并<code>append</code>到<code>"breakdown"</code>键</p>
<pre><code>for item in json_data:
for json_dict in item:
json_dict["breakdown"].append({"type": "type3", "count": 4533})
</code></pre></li>
<li><p>将其转换回<code>JSON</code>字符串</p>
<pre><code>json_string = json.dumps(json_data)
</code></pre></li>
</ol>