临时变量法:
int a = 5;
int b = 4;
int temp = 0;
temp = a;
a = b;
b = temp;
异或法:
int a = 5;
int b = 6;
a = a^b;
b = a^b;
a = a^b;
加减法:
int a = 5;
int b = 56;
a = a+b;
b = a-b;
a = a-b;
临时变量法:
int a = 5;
int b = 4;
int temp = 0;
temp = a;
a = b;
b = temp;
异或法:
int a = 5;
int b = 6;
a = a^b;
b = a^b;
a = a^b;
加减法:
int a = 5;
int b = 56;
a = a+b;
b = a-b;
a = a-b;
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