编写交换两个变量值的函数,并调用该函数交换主函数中两个变量的值

#includevoid fun(int *a,int *b){int temp ;temp = *a ;*a = *b ;*b = temp ; }main(){int a=1;int b=2;fun(&a,&b);printf("a=%d,b=%d",a,b);}