python 字典套字典或列表的示例
人气:0文件f1
A | 1 | a |
A | 1 | b |
A | 2 | C |
B | 2 | a |
B | 2 | b |
生成如下字典:
tdict={'A':{1:['a','b'], 2:['C']}, 'B':{2:['a','b']} } In [22]: tdict={} In [23]: f=open('f1') In [24]: while True: ...: line=f.readline().strip() ...: if not line: ...: break ...: pos1=line.split()[0] ...: pos2=line.split()[1] ...: pos3=line.split()[2] ...: if pos1 not in tdict: ...: tdict[pos1]={} ...: tdict[pos1][pos2]=[pos3] ...: else: ...: if pos2 not in tdict[pos1]: ...: tdict[pos1][pos2]=[pos3] ...: else: ...: tdict[pos1][pos2].append(pos3) ...: In [25]: f.close() In [26]: tdict Out[26]: {'A': {'1': ['a', 'b'], '2': ['C']}, 'B': {'2': ['a', 'b']}} In [27]: tdict['B']['2'] Out[27]: ['a', 'b']
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