擅长:python、mysql、java
<p>可以使用.join以给定分隔符连接所有列表项。如果要打印dic的所有钥匙,可以使用:</p>
<pre><code>dic = {
'key_1':['val_1','val_2'],
'key_2':['val_3','val_4'],
'key_3':['val_5','val_6']
}
info = {
'i_1':'good',
'i_2':'bad'
}
for keys in dic:
# .join will join all list items for a particular key with & and store it in variable subjects
subjects = ' & '.join(dic[keys])
print "jack scored " + info['i_1'] + " in both subjects " + subjects
</code></pre>
<p>输出:
杰克在第一课和第二课的成绩都很好
杰克在第五课和第六课的成绩都很好
杰克在第三课和第四课的成绩都很好</p>