#!/usr/bin/python
PI = 3.14159265359;
print PI;
PI = 1;
print "change :"
print PI;

原文:http://blog.51cto.com/13502993/2140654
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#!/usr/bin/python
PI = 3.14159265359;
print PI;
PI = 1;
print "change :"
print PI;

原文:http://blog.51cto.com/13502993/2140654