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                ![](https://box.kancloud.cn/22083278b18a8bbb0249319af99feec3_860x386.png) > * import本質: > 1. 搜索當前路徑和sys.path列表中的路徑 > 2. 導入模塊就是把.py文件解釋一遍,并復制給對應的模塊名,例如import test 會把test.py文件解釋一遍,并把解釋后的結果復制給test,這時通過test.屬性來調用;from test import a 把a解釋,并復制給a > 3. 導入包,就是執行包下的__init__.py文件 > 4. sys.path: > 指當前項目中被執行的.py文件路徑和python安裝路徑(Lib,sit) ![](https://box.kancloud.cn/4fe899860524c7e689ee37afdefb867f_743x436.png) ~~~ ['E:\\DjangoDjango_Mysql\\booktest', 'E:\\DjangoDjango_Mysql', 'D:\\Python\\Python36\\python36.zip', 'D:\\Python\\Python36\\DLLs', 'D:\\Python\\Python36\\lib', 'D:\\Python\\Python36', 'D:\\Python\\Python36\\lib\\site-packages', 'D:\\Python\\Python36\\lib\\site-packages\\psutil-5.2.2-py3.6-win-amd64.egg', 'D:\\Python\\Python36\\lib\\site-packages\\win32', 'D:\\Python\\Python36\\lib\\site-packages\\win32\\lib', 'D:\\Python\\Python36\\lib\\site-packages\\Pythonwin'] ~~~
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