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x = 1 # global variable #全局变量 # alters the local variable x, shadows the global variable def a(): x = 25 #局部变量 print "\nlocal x in a is", x, "after entering a" #打印局部变量 x += 1 print "local x in a is", x, "before exiting a" #打印变化后的局部变量 # alters the global variable x def b(): global x #声明使用全局变量x print "\nglobal x is", x, "on entering b" 打印全局变量 x *= 10 #修改全局变量 print "global x is", x, "on exiting b" #打印修改后的全局变量 print "global x is", x #再次打印全局变量 x = 7 print "global x is", x #运行时,首次修改全局x,并打印 a() b() a() b() print "\nglobal x is", x
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一个完整的php项目示例
2009-05-19 13:30 1288<script>function StorePag ... -
一个简单的python代理服务器源码分析
2009-05-20 00:29 1426<script>function StorePag ... -
python起步
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fibonacci.py源代码分析
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python打印变量的标识符、类型和值
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