发布时间：2016-03-05 16:12:30

#include<stdio.h>#include<stdlib.h>#include<math.h>int prime(int num)//判断是否为质数{if (num == 1){return 0;}else if (num == 2 || num == 3){return 1;}else{int flag = 1;//假设是质数for (int i = 2; i < num; i++){if (num%i == 0)//存在非2及本身的因子，非质数{flag = 0;break.........【阅读全文】

发布时间：2016-03-05 15:22:16

#include#include#include/*整数部分*/void dto2i(int num){if (num==0){return;}else{dto2i(num/2);printf("%d", num%2);}}/*小数部分*/void dto2f(float num){num *= 2;if (num == 0){return;}if ((int)num == 1){printf("1");num -=(int)num;dto2f(num);}else.........【阅读全文】

发布时间：2016-03-05 13:28:41

#include<stdio.h>#include<math.h>#include<stdlib.h>double num1(int num)//递归实现{if (num == 1){return 1.0;}else if (num == 2){return 2.0;}else{return num1(num - 1) + num1(num - 2);}}double loop1(int num)//for循环实现{double num1 = 1;double num2 = 2;double res = 0;for (i.........【阅读全文】

发布时间：2016-03-05 10:35:59

#include#include#includevoid winr()//打开运行{keybd_event(0x5b, 0, 0, 0);keybd_event('R', 0, 0, 0);keybd_event('R', 0, 2, 0);keybd_event(0x5b, 0, 2, 0);Sleep(1000);}void notepad()//输入notepad并打开{keybd_event('N', 0, 0, 0);keybd_event('N', 0, 2, 0.........【阅读全文】

发布时间：2016-03-05 08:27:19

#include<stdio.h>#include<stdlib.h>#include<math.h>#define SIZE 10void main(){int num, i, res = 0;scanf_s("%d", &num);printf("%d有", num);for (i = 0; i < SIZE; i++){if (num / pow(10, i) >= 1 && num / pow(10, i + 1) < 1){printf("%d位\n", i + 1);break;}}for (int j = i; i >= 0; i.........【阅读全文】