目录python函数详解一、函数概念function二、函数定义和调用三、文档字符串四、参数解析1、形参和实参2、参数类型五、详解return六、变量作用域七、lambda表达式八、内建函数扩展：内置函数列表Python函数详解
I have an error ? My pl/Sql Developer says my oracle database cannot find the service descriptor But when I Do a check the listener I get this error.
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