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a=("[{'aa':11,'bb':22,'cc':33},{'aa':44,'bb':55,'cc':66}]")如何将a转换成列表再将a[0]【'aa'】的值打印出来
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python3
>>> a=("[{'aa':11,'bb':22,'cc':33},{'aa':44,'bb':55,'cc':66}]") >>> a "[{'aa':11,'bb':22,'cc':33},{'aa':44,'bb':55,'cc':66}]" >>> eval(a) [{'cc': 33, 'aa': 11, 'bb': 22}, {'cc': 66, 'aa': 44, 'bb': 55}] >>> _[0] {'cc': 33, 'aa': 11, 'bb': 22}
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python3
>>> a=("[{'aa':11,'bb':22,'cc':33},{'aa':44,'bb':55,'cc':66}]") >>> a "[{'aa':11,'bb':22,'cc':33},{'aa':44,'bb':55,'cc':66}]" >>> eval(a) [{'cc': 33, 'aa': 11, 'bb': 22}, {'cc': 66, 'aa': 44, 'bb': 55}] >>> _[0] {'cc': 33, 'aa': 11, 'bb': 22}