python - 如何在 Python 中的字典中打印列表？

Question

我有以下字符串，我想打印列表对象：

{u'categories': [u'Food', u'Grocery']}

我使用了以下 ode 但不起作用：

d = {u'categories': [u'Food', u'Grocery']}                        
print "Categories: " + d['categories']                     
print "Categories: " + d['categories[0]']

谢谢！

Answer 1

>>> d = {u'categories': [u'Food', u'Grocery']}
>>> print "Categories: " + ', '.join(d['categories'])
Categories: Food, Grocery
>>> print "Categories: " + d['categories'][0]
Categories: Food

Answer 2

如果您想打印类别，然后是每个类别的名称，那么：

for category in your_dict['categories']:
    print 'Categories:', category

Answer 3

for k,v in your_dict.iteritems():
    for item in v:
        print k, ":", item