【ㄌㄇ】評論
假設X1=1010, X2=1111X1⊕☆2=01010101⊕☆...
【努力之後還是努力】評論
X1⊕X2⊕X2⊕X1⊕X2 =X1⊕(X2⊕X2)⊕X1⊕X2 =X1⊕0⊕X1⊕X2 =(X1⊕0)⊕X1⊕X2 =(X1)⊕X1⊕X2 =(X1⊕X1)⊕X2 =0⊕X2=X2
【亦安】評論
假設⊕全部當互斥,倆倆刪去,剩X2