int a = 2,b = 3;
public void ChangeNum(){
a = a ^ b;
b = a ^ b; //a ^ b ^ b = a,b ^ a ^ a = b
a = a ^ b;
}
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int a = 2,b = 3;
public void ChangeNum(){
a = a ^ b;
b = a ^ b; //a ^ b ^ b = a,b ^ a ^ a = b
a = a ^ b;
}
相关文章：