刚接触,不会写,求步骤

 

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#include<stdio.h>
void Exchange(int *one, int *another);
void Exchange(int *one, int *another){
    int temp;
    temp = *one;
    *one = *another;
    *another = temp;
}
void main(void){
    int num1;
    int num2;
    printf("输入两个需要交换的数\n",num1,num2);
    scanf("%d %d",&num1,&num2);
    Exchange(&num1,&num2);
    printf("交换完毕后两个数的值为%d和%d\n",num1,num2);
}