擅长:python、mysql、java
<pre><code>>>> loginCredentials = {'Company1':{'User':'UserName', 'Password':'UserPassword', 'StoreID':'StoreNum'}, 'Company2':{'User':'UserName', 'Password':'UserPassword', 'StoreID':'StoreNum'}}
>>> for company, credentials in loginCredentials.iteritems():
... store_id = credentials["StoreID"]
... password = credentials["Password"]
... username = credentials["User"]
... # do stuff
...
</code></pre>
<p><code>iteritems</code>将字典转换为包含字典项的键和值的元组列表(实际上它是一个迭代器对象)。所以这里实际发生的是,你在这个列表上循环,元组被解压成<code>company</code>和{<cd3>}。在</p>
^{pr2}$