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                [TOC] ## 編碼 默認情況下,Python 3 源碼文件以**UTF-8**編碼,所有字符串都是 unicode 字符串。 當然你也可以為源碼文件指定不同的編碼: `# -*- coding: cp-1252 -*-` ## import 與 from...import 在 python 用 `import` 或者 `from...import` 來導入相應的模塊。 將整個模塊(somemodule)導入,格式為: `import somemodule` 從某個模塊中導入某個函數,格式為: `from somemodule import somefunction` 從某個模塊中導入多個函數,格式為: `from somemodule import firstfunc, secondfunc, thirdfunc ` 將某個模塊中的全部函數導入,格式為:` from somemodule import *` * 導入sys模塊 ``` import sys print('================Python import mode=========================='); print ('命令行參數為:') for i in sys.argv: print (i) print ('\n python 路徑為',sys.path) ``` * 導入 sys 模塊的 argv,path 成員 ``` from sys import argv,path # 導入特定的成員 print('================python from import===================================') print('path:',path) # 因為已經導入path成員,所以此處引用時不需要加sys.path ```
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