data = [
{'a': 1},
{'b': 2, 'a': 2}
]
for o in data:
print o.get('a')
print o['a']
结果:
1
1
2
2
for o in data:
for k, v in o.items():
print k, ':', v
print '------'
结果:
a : 1
a : 2
b : 2
------