#include"stdio.h"#define sw(x,y) {x^=y;y^=x;x^=y;}main(){int a=10,b=01;sw(a,b);printf("%d,%d\n",a,

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#include

#include"stdio.h"#define sw(x,y) {x^=y;y^=x;x^=y;}main(){int a=10,b=01;sw(a,b);printf("%d,%d\n",a,
#include"stdio.h"
#define sw(x,y) {x^=y;y^=x;x^=y;}
main()
{int a=10,b=01;
sw(a,b);
printf("%d,%d\n",a,

#include"stdio.h"#define sw(x,y) {x^=y;y^=x;x^=y;}main(){int a=10,b=01;sw(a,b);printf("%d,%d\n",a,
^是异或的意思
a,b的二进制是
1010 0001
sw(x,y) {x^=y;y^=x;x^=y;}
交换a,b的两个值
就是下面这段代码
#include"stdio.h"
main()
{int a=10,b=01;
a = a^b; // 1010 异或 0001 a = 1011
b = b^a; // 0001 异或 1011 b=1010
a = a^b; //1011 异或 1010 a = 0001
printf("%d,%d\n",a,b);} // a= 01 b=10

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