python中利用eval函数将字符串转换为列表，元组或者字典

eval内置函数.pyweb 字符串转换成列表bash a = "[[1,2],[3,4]]" print(type(a)) b = eval(a) c = list(a) print(type(b)) print(type(c)) print(b) print(c) 字符串转换成字典svg a = "{1:'a',2:'b'}" print(type(a)) b = dict(eval(a))

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