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                # 3.8.?小結 現在 `odbchelper.py` 程序和它的輸出結果都應該非常清楚了。 ``` def buildConnectionString(params): """Build a connection string from a dictionary of parameters. Returns string.""" return ";".join(["%s=%s" % (k, v) for k, v in params.items()]) if __name__ == "__main__": myParams = {"server":"mpilgrim", \ "database":"master", \ "uid":"sa", \ "pwd":"secret" \ } print buildConnectionString(myParams) ``` 下面是 `odbchelper.py` 的輸出結果: ``` server=mpilgrim;uid=sa;database=master;pwd=secret ``` 在深入下一章學習之前,確保您可以無阻礙地完成下面的事情: * 使用 Python IDE 來交互式地測試表達式 * 編寫 Python 程序并且[從 IDE 運行](../getting_to_know_python/testing_modules.html "2.6.?測試模塊"),或者從命令行運行 * 導入模塊及調用它們的函數 * 聲明函數以及 [`doc string`](../getting_to_know_python/documenting_functions.html "2.3.?文檔化函數")、[局部變量](declaring_variables.html "3.4.?變量聲明")和[適當的縮進](../getting_to_know_python/indenting_code.html "2.5.?代碼縮進")的使用 * 定義 [dictionary](index.html#odbchelper.dict "3.1.?Dictionary 介紹")、[tuple](tuples.html "3.3.?Tuple 介紹") 和 [list](lists.html "3.2.?List 介紹") * 任意一個對象的訪問方法,包括:字符串、list、dictionary、函數和模塊 * 通過[字符串格式化](formatting_strings.html "3.5.?格式化字符串")連接值 * 使用 list 解析[映射 list](mapping_lists.html "3.6.?映射 list") 為其他的 list * 把字符串分割為 list 和把 list 連接為字符串
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