C语言基础练习11

1.对输入的两个整数按大小顺序输出。用函数处理，而且用指针类型的数据作函数参数

#include<stdio.h>int main(){void swap(int *p1, int *p2);int a, b;int *pointer_1, *pointer_2;printf("please enter a and b:");scanf_s("%d,%d", &a, &b);pointer_1 = &a;pointer_2 = &b;if (a < b) swap(pointer_1, pointer_2);printf("max=%d,min=%d\n", a, b);    return 0;}void swap(int *p1, int *p2){int temp;temp = *p1;*p1 = *p2;*p2 = temp;}

运行结果：

2.输入3个整数a,b,c，要求按由小到大的顺序将它们输出。用函数实现。

#include<stdio.h>int main(){void exchange(int *q1, int *q2, int *q3);int a, b, c, *p1, *p2, *p3;printf("please enter three numbers:");scanf_s("%d,%d,%d", &a, &b, &c);p1 = &a; p2 = &b; p3 = &c;exchange(p1, p2, p3);printf("The order is:%d,%d,%d\n", a, b, c);    return 0;}void exchange(int *q1, int *q2, int *q3){void swap(int *pt1, int *pt2);if (*q1 < *q2)swap(q1, q2);if (*q1 < *q3)swap(q1, q3);if (*q2 < *q3)swap(q2, q3);}void swap(int *pt1, int *pt2){int temp;temp = *pt1;*pt1 = *pt2;*pt2 = temp;}

运行结果：

3.通过指针变量输出整型数组a的10个元素

#include<stdio.h>int main(){int i,a[10], *p = a;printf("please enter 10 integer numbers:");for (i = 0; i < 10; i++)scanf_s("%d", p++);p = a;for (i = 0; i < 10; i++, p++)printf("%d ", *p);printf("\n");    return 0;}

运行结果：