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                ## 深拷貝和淺拷貝 淺拷貝:對于對象的頂層拷貝,拷貝了引用,沒有拷貝內容 賦值(=) 深拷貝:對于一個對象所有層次的拷貝(遞歸) import copy;copy.deepcopy() ## == & is == 比較兩個對象是否相等(比較值) is 比較兩個引用是否指向了同一個對象(比較引用)
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