擅长:python、mysql、java
<p>您可以使用<code>for key in dict</code>语法来迭代字典的键。然后,在循环中,可以使用<code>dict[key]</code>读取该键中保存的内容。因此,以下措施将起作用:</p>
<pre><code>countryPop = {'Vatican': 800, 'Tuvalu': 10200, 'Nauru': 11000, 'Palau': 17900,
'San Marino': 33420, 'Monaco': 38300, 'Marshall Islands': 55500}
for key in countryPop:
print(key + " has Population " + str(countryPop[key]))
</code></pre>
<p>输出:</p>
<blockquote>
<p>Palau has Population 17900</p>
<p>Tuvalu has Population 10200</p>
<p>Vatican has Population 800</p>
<p>San Marino has Population 33420</p>
<p>Marshall Islands has Population 55500</p>
<p>Monaco has Population 38300</p>
<p>Nauru has Population 11000</p>
</blockquote>