如何迭代字典的值？

Question

我有一本有键和值对的字典。每个键可以有多个值，例如字典可以是这样的：

    enh_166084:['AC002454.1', 'RN7SL7P']
    enh_341666:['MYOM1', 'RP13-270P17.2', 'SNORA70']

现在，我想对键进行迭代，并将其对应的值写入一个txt文件，每一个值都在一行上，类似这样的东西：

    AC002454.1
    RN7SL7P
    MYOM1
    RP13-270P17.2
    ......

我该怎么做？你知道吗

Answer 1

使用dictionaryitervalues()方法：

for value in your_dict.itervalues():
    # Since the values are lists, we have to enumerate those too:
    for item in value:
        output_file.write(item)
        output_file.write("\n")

Answer 2

遍历每个键，然后遍历每个值：

for key in dictionary: # For each key
    for value in dictionary[key]: # For each value in the dictionary under that key
        # Do something with the value

Answer 3

也许您可以将值提取为嵌套列表，将其展平，然后在其上循环：

import itertools
chain = itertools.chain(*mydict.values())
for i in list(chain):
    output_file.write(item)
    output_file.write("\n")