在python中循环一个未命名的字典

Question

有没有办法在python中打印匿名字典的键和值.

for key in {'one':1, 'two':2, 'three':3}:
    print key, ":", #value

Answer 1

for key, value in {'one':1, 'two':2, 'three':3}.iteritems():
    print key, ":", value

默认情况下,迭代它会返回其键..iteritems()返回(key,value)的2元组.