python中字符串转换为变量的两种方法

#!/usr/bin/env python

a="a_content"
b="b_content"

param = {'a': "a_xx", 'b': "b_xx"}

print "param:", param

print "orignal a,b:", a, b

for i in param:
    locals()[i] = param[i]

print "locals a,b:", a, b

for i in param:
    vars()[i] = param[i]

print "vars a,b:", a, b


输出结果：

param: {'a': 'a_xx', 'b': 'b_xx'}

orignal a,b: a_content b_content

locals  a,b: a_xx b_xx

vars    a,b: a_xx b_xx