摘要：
#include<stdio.h>int main(){ float a1, a2, a3 ; float sum, ave; scanf("%f%f%f", &a1, &a2, &a3); sum = a1 + a2 + a3; ave = sum/3; printf("sum=%f, ave=%f", sum, ave ); return 0;}上面是求和运算。将一个三位数逆序输出。#include<stdio.h>main(){ int n; int n3, n2, n1; int num; prin 阅读全文
摘要：
#include <reg52.h>unsigned char m; unsigned char flag;unsigned char tvb;unsigned char xianshi;void main(){ TMOD=0x20; //设置定时器1为方式2 TH1=0xfd; //装入处初值 TL1=0xfd; TR1=1; //启动定时器 SM0=0;// SM1=1; // shezhifangshi1 REN=1;//接收使能 EA=1; ES=1; while(1) { i... 阅读全文