擅长:python、mysql、java
<p>下面是预期输出的代码。实际上,您正在尝试在分配dict键之前访问它。你知道吗</p>
<pre><code>inventory = {} #This is the dict to hold all the items
for x in range(1,10):
if 'slot{0}'.format(x) in inventory:
x += 1
inventory['slot{0}'.format(x)] = {'type':'Health'}
break
print(inventory)
</code></pre>