1、c语言中定义函数和调用函数（计算三个数中的最大值）
#include <stdio.h>
int max3(int a, int b, int c) { int max = a; if (b > max) max = b; if (c > max) max = c; return max; } int main(void) { int n1, n2, n3; puts("please input three integers!"); printf("n1 = "); scanf("%d", &n1); printf("n2 = "); scanf("%d", &n2); printf("n3 = "); scanf("%d", &n3); printf("the max = %d\n", max3(n1, n2, n3)); return 0; }
