194 lines
4.6 KiB
C
194 lines
4.6 KiB
C
//
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// Created by CC-star on 25-5-6.
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int R,num;//需要得到的进制，输入的整数
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char num_16[100]; // 十六进制
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int R_choice;//原本进制
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// void Pr_Start() {
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// int power = 1; // R进制的幂，从R^0=1开始
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// }
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//十进制转2进制
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void DectoBin() {
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int arr[100],length = 0;
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while(num){
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arr[length++] = num % 2;
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num/=2;
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}
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printf("对应2进制表示为：");
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for(int i = length-1;i>=0;i--){
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printf("%d",arr[i]);
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}
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printf("\n");
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}
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//十进制转R进制
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void DectoR() {
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switch(R){
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//十进制转二进制
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case 2:
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DectoBin();
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break;
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//十进制转8进制
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case 8:
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printf("对应8进制表示为：%o\n",num);
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break;
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case 10:
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printf("对应10进制表示为：%d\n",num);
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break;
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//十进制转16进制
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case 16:
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printf("对应16进制表示为：%x\n",num);
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break;
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default:
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printf("输入有误！目前只支持2、8、10、16进制间的转换\n");
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break;
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}
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}
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//2进制转10进制
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void BintoDec() {
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int s = 0;
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int i = 0;
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int power = 1;
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while (num > 0) {
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s += (num % 10) * power;
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power *= 2;
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num/=10;
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i++;
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}
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num = s;
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DectoR();
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}
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//8进制转10进制
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void OcttoDec() {
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int s = 0;
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int i = 0;
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int power = 1;
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while (num > 0) {
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s += (num % 10) * power;
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power *= 8;
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num/=10;
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i++;
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}
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num = s;
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DectoR();
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}
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//16进制转10进制
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void HextoDec() {
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int s = 0; // 十进制结果
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int len = strlen(num_16);
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int power = 1;
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for(int i = len-1; i >= 0; i--) {
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int digit;
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if(num_16[i] >= '0' && num_16[i] <= '9') {
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digit = num_16[i] - '0';
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}
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else if(num_16[i] >= 'A' && num_16[i] <= 'F') {
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digit = num_16[i] - 'A' + 10;
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}
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else if(num_16[i] >= 'a' && num_16[i] <= 'f') {
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digit = num_16[i] - 'a' + 10;
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}
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else {
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// 既不是数字也不是字母a-f/A-F，输入错误
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printf("错误：输入的不是有效的%d进制数！\n",R_choice);
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return ;
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}
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s = s + digit * power;
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power *= 16;
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}
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num = s;
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DectoR();
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}
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int Input() {
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printf("输入你的%d进制数:",R_choice);
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scanf("%d",&num);
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while (getchar() != '\n');
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if(num < 0) {
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printf("错误：请输入正数！\n");
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return 0;
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}
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int tmp = num;
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int a;
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while (tmp > 0) {
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a = tmp % 10;
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if (a >= R_choice) {
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printf("错误：输入的不是有效的%d进制数！\n",R_choice);
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return 0;
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}
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tmp /= 10;//去掉个位
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}
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printf("输入你要得到的R进制:");
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scanf("%d",&R);
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while (getchar() != '\n');
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return 1;
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}
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int C1main(){
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int opt;
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while (1) {
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printf("---------------------👇进制转换【整数｜正数】控制面板👇----------------------\n");
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printf("1：2进制转R\n2：8进制转R\n");
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printf("3：10进制转R\n4：16进制转R\n");
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printf("0.返回主控制台\n");
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printf("-----------------------👆选择对应数字👆------------------------\n");
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printf("请输入选择：");
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scanf("%d", &opt);
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//固定原始数字的进制
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if (opt == 1) {
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R_choice =2;
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}else if(opt == 2) {
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R_choice=8;
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}else if(opt == 3) {
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R_choice=10;
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}else if(opt == 4) {
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R_choice=16;
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}
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switch (opt) {
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case 1://2进制转R
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if(Input() == 1) {
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BintoDec();
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}
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break;
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case 2://8进制转R
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if(Input() == 1) {
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OcttoDec();
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}
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break;
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case 3://10进制转R
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if(Input() == 1) {
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DectoR();
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}
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break;
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case 4://16进制转R
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printf("输入你的16进制数:");
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scanf("%s", num_16);
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printf("输入你要得到的R进制:");
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scanf("%d",&R);
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HextoDec();
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break;
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case 0:
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printf("⚠️返回主控制台中...⚠️\n");
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return 0;
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default:
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printf("⚠️输入有误，请重新输入⚠️\n");
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break;
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}
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}
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}
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