#include <stdio.h>#include <stdlib.h>int max(int a, int b); /*函數說明*/main(void) /*主函數*/{int x, y, z; /*變量說明*/int max(int a, int b); /*函數說明*/printf("input two numbers:\n");scanf_s("%d%d", &x, &y); /*輸入x,y值*/z = max(x, y); /*調用max函數*/printf("maxmum=%d", z); /*輸出*/}int max(int a, int b) /*定義max函數*/{if (a > b)return a;else return b; /*把結果返回主調函數*/}