primary subscript 中文意思是什麼
primary subscript
解釋
主標-
If the primary is a mapping object ( e. g., a dictionary ), the subscript must have a type compatible with the mapping ' s key type, and the mapping is then asked to create a key / datum pair which maps the subscript to the assigned object
如果主元是一個映射對象(比如字典) ,下標的類型必須和映射的鍵類型兼容,接著該映射就被要求創建一個把下標映射到被賦對象的鍵/數據對。
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