用c语言编写函数,将输入的十进制数转换成十六进制数并输出 C语言：写一函数，输入一个十六进制数，输出相应的十进制数。
\u7528C\u8bed\u8a00\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\u5b9e\u73b0\u5341\u516d\u8fdb\u5236\u6570\u81f3\u5341\u8fdb\u5236\u6570\u7684\u8f6c\u6362.\u5728\u4e3b\u51fd\u6570\u4e2d\u8f93\u5165\u5341\u516d\u8fdb\u5236\u6570,\u8f93\u51fa\u76f8\u5e94\u7684\u5341\u8fdb\u5236\u6570\u3002#define _CRT_SECURE_NO_WARNINGS
#include
#include
void HEX_DEC(int num,int N){
if(num>N-1){
HEX_DEC(num/N,N);
}
printf("%d",num%N);
}
void main(){
int num;
printf("\u8f93\u5165\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u7684\u6570\n");
scanf("%x",&num);
printf("\u76f4\u63a5\u7528%%d\u8f93\u51fa:%d\n",num);
printf("\u7528\u51fd\u6570\u8f93\u51fa:");
HEX_DEC(num,10);//\u8f6c\u6362\u6210\u51e0\u8fdb\u5236\u5c31\u628a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6362\u6210\u51e0
printf("\n");
system("pause");
}
\u8fd0\u884c\u7ed3\u679c\uff1a
\u6269\u5c55\u8d44\u6599\uff1ascanf\u7528\u6cd5\uff1a
\u8f93\u51fa\u7684\u503c\u53ea\u662f\u7a7a\u683c\u524d\u9762\u7684\u5b57\u7b26\u662f\u56e0\u4e3ascanf\u51fd\u6570\u7684\u8f93\u5165\u683c\u5f0f\u9519\u8bef\uff0c\u8f93\u5165\u53c2\u6570\u7684\u53d8\u91cf\u524d\u9700\u8981\u52a0&\u3002
scanf("%s",s);\u6539\u4e3ascanf("%s",&s);
scanf\u7684\u7528\u6cd5\u662f\uff1ascanf("\u683c\u5f0f\u63a7\u5236\u5b57\u7b26\u4e32",\u8f93\u5165\u53c2\u6570\u4e00\uff0c\u8f93\u5165\u53c2\u6570\u4e8c)\uff1b
\u683c\u5f0f\u63a7\u5236\u5b57\u7b26\u4e32\u5305\u542b\uff1a\u683c\u5f0f\u63a7\u5236\u8bf4\u660e\uff0c\u666e\u901a\u5b57\u7b26\u3002
1\u3001\u683c\u5f0f\u63a7\u5236\u5b57\u7b26\u4e32\u8868\u793a\u8f93\u5165\u7684\u683c\u5f0f\uff0c(int\u578b\u7528%d,float\u7528%f,double\u578b\u7528%lf)
2\u3001\u666e\u901a\u5b57\u7b26\uff1a\u5728\u8f93\u51fa\u6570\u636e\u7684\u65f6\u5019\uff0c\u6309\u7167\u539f\u6837\u8f93\u51fa\u7684\u5b57\u7b26\uff0c\u5982\uff1a"fahr=%d,celsius=%d\n"\u4e2d\u7684fahr=\uff0ccelsius=\u3002
3\u3001\u8f93\u5165\u7684\u53c2\u6570\u662f\u53d8\u91cf\u7684\u5730\u5740\uff0c\u6240\u4ee5\u8981\u5728\u53d8\u91cf\u524d\u9762\u52a0&\u3002
#include<stdio.h>
#include<math.h>
#include<string.h>
int main()
{
char a[10];
void convert(char a[]);
printf("\u8bf7\u8f93\u5165\u5341\u516d\u8fdb\u5236\u6570:");
gets(a);//\u8f93\u5165\u5341\u516d\u8fdb\u5236\u6570
convert(a);
return 0;
}
void convert(char a[])
{
int n,i,num=0;
n=strlen(a);
for(i=n-1;i>=0;i--)
{
if(a>='0'&&a<='9')
num+=(a-'0')*pow(16,n-1-i);
else if(a>='A'&&a<='Z')
num+=(10+(a-'A'))*pow(16,n-1-i);
else if(a>='a'&&a<='z')
num+=(10+(a-'a'))*pow(16,n-1-i);
}
printf("\u8f6c\u6362\u5341\u8fdb\u5236\u4e3a:");
printf("%d",num);
}
\u6269\u5c55\u8d44\u6599\uff1agets()\u7684\u7528\u6cd5\uff1a
gets()\u51fd\u6570\u7528\u6765\u4ece\u6807\u51c6\u8f93\u5165\u8bbe\u5907(\u952e\u76d8)\u8bfb\u53d6\u5b57\u7b26\u4e32\u76f4\u5230\u56de\u8f66\u7ed3\u675f\uff1b\u4f46\u56de\u8f66\u7b26\u4e0d\u5c5e\u4e8e\u8fd9\u4e2a\u5b57\u7b26\u4e32\u3002\u5176\u8c03\u7528\u683c\u5f0f\u4e3a\uff1agets(s)\uff1b\u5176\u4e2ds\u4e3a\u5b57\u7b26\u4e32\u53d8\u91cf(\u5b57\u7b26\u4e32\u6570\u7ec4\u540d\u6216\u5b57\u7b26\u4e32\u6307\u9488)\u3002
gets(s)\u51fd\u6570\u4e0escanf("%s",s)\u76f8\u4f3c,\u4f46\u4e0d\u5b8c\u5168\u76f8\u540c,\u4f7f\u7528scanf("%s",s)\u51fd\u6570\u8f93\u5165\u5b57\u7b26\u4e32\u65f6\u5b58\u5728\u4e00\u4e2a\u95ee\u9898\uff0c\u5c31\u662f\u5982\u679c\u8f93\u5165\u4e86\u7a7a\u683c\u4f1a\u8ba4\u4e3a\u8f93\u5165\u5b57\u7b26\u4e32\u7ed3\u675f\uff0c\u7a7a\u683c\u540e\u7684\u5b57\u7b26\u5c06\u4f5c\u4e3a\u4e0b\u4e00\u4e2a\u8f93\u5165\u9879\u5904\u7406,\u4f46gets()\u51fd\u6570\u5c06\u63a5\u6536\u8f93\u5165\u7684\u6574\u4e2a\u5b57\u7b26\u4e32\u76f4\u5230\u56de\u8f66\u4e3a\u6b62\u3002
\u793a\u4f8b\uff1a
#include<stdio.h>
int main()
{
char s[20];
printf("What's your name?\n");
gets(s);
printf("%s\n",s);
return 0;
}
\u5f53\u8f93\u5165a bde\u56de\u8f66\u7684\u65f6\u5019\uff0c\u4f1a\u8f93\u51faa bde\u3002
//#include "stdafx.h"//If the vc++6.0, with this line.
#include "stdio.h"
int main(void){
unsigned n,i,k;
printf("Please enter a positive integer...
n=");
scanf("%d",&n);
printf("%d(10) = 0x",n);
if(n){
for(i=0;(n&0xf0000000)==0;n<<=4,i++);
for(;i<8;i++){
k=n&0xf0000000;
(k>>=28)&=0x0f;
printf("%c",k<10 ? k+'0' : k+0x37);
n<<=4;
}
}
else printf("0");
printf("
");
return 0;
}
简单作法：用printf()函数格式输出完成
#include <stdio.h>
void main()
{
int n;
scanf("%d", &n ); //输入10进制数
printf("%x", n ); //输出16进制格式
}
超出整数范围的，需要用字符串实现，代码较为复杂，有兴趣可搜一下大数运算的C程序代码
绛旓細鍦C璇█缂栫▼涓紝瑕佸疄鐜板皢鍗佽繘鍒舵鏁存暟杞崲涓哄崄鍏繘鍒舵暣鏁帮紝鍙互浣跨敤浠ヤ笅浠ｇ爜鐗囨锛歝 include int main() { int decimalInput; // 瀹氫箟瑕佽浆鎹鐨勫崄杩涘埗鏁 int hexadecimalOutput; // 瀛樺偍鍗佸叚杩涘埗缁撴灉 // 杈撳叆鍗杩涘埗鏁 printf("璇疯緭鍏ヤ竴涓崄杩涘埗姝ｆ暣鏁: ");scanf("%d", &decimalInput);// 杞崲涓...
绛旓細for(;i<8;i++){k=n&0xf0000000;(k>>=28)&=0x0f;printf("%c",k<10 ? k+'0' : k+0x37)
绛旓細鍙互閫氳繃C璇█缂栧啓涓涓▼搴锛屽皢杈撳叆鐨勫崄杩涘埗鏁拌浆鎹负浜岃繘鍒舵暟銆傞鍏堬紝鎴戜滑闇瑕佷簡瑙ｅ崄杩涘埗鍜屼簩杩涘埗涔嬮棿鐨勮浆鎹㈠師鐞嗐傚崄杩涘埗鏄垜浠棩甯哥敓娲讳腑甯哥敤鐨勬暟鍊艰〃绀烘柟娉曪紝姣忎竴浣嶄笂鐨勬暟鐮侀兘鏄0~9涔嬮棿鐨勬暟瀛椼傝屼簩杩涘埗鍒欏彧鏈0鍜1涓や釜鏁扮爜銆傝灏嗗崄杩涘埗杞崲涓轰簩杩涘埗锛屽彲浠ラ噰鐢“闄2鍙栦綑”鐨勬柟娉曪紝鍗冲皢鍗...
绛旓細{ //鍏堝皢璐熸暟杞崲鎴愭鏁 temp=-frequence;//姹傚嚭杩欎釜姝ｆ暟temp鐨勪簩杩涘埗骞跺瓨鏀惧湪pwm_temp涓 transform_data_zhengshu(temp,pwm_temp);//灏嗚繖涓鏁皌emp鐨勪簩杩涘埗pwm_temp鍙栧弽骞惰浆鎹㈡垚鍗佽繘鍒舵暟sum int sum=0;int i=0;for(i=0;i<15;i++){ if(pwm_temp==0)pwm_temp=1;else pwm_temp=0;...
绛旓細//鍗佽繘鍒惰浆鍏跺畠杩涘埗#include <stdio.h>#define charset "0123456789ABCDEFGHIJKLMNOPQ"int longtoother(long x,int n,char *p){//鏁存暟閮ㄥ垎杞崲杩涘埗 锛岃繑鍥炴暟瀛楅暱搴 int i=0,k,m,mm;char *pp=p;if (x==0){*p='0'; *(p+1)=0; return 1;}else{while(x!=0){ //i鐢ㄤ簬璁℃暟鍏卞灏...
绛旓細浠ｇ爜鏂囨湰锛歩nclude "stdio.h"int myfun(int m,int n){//鍗佽繘鍒跺惊鐜彸绉 int tmp,i;for(tmp=m,i=0;tmp;i++,tmp/=10);if((n%=i)<0) n+=i;for(tmp=i-n,i=1;tmp;i*=10,tmp--);for(tmp=n,n=1;tmp;n*=10,tmp--);return m%n*i+m/n;} int main(int argc,char *...
绛旓細include<stdio.h> void f(int n){ if(n) f(n/2);else return;printf("%d",n%2);} int main(){ int n;while(1){ scanf("%d",&n);if(n<0) break;if(n==0) printf("0");f(n);printf("\n");} return 0;}
绛旓細include<stdio.h> int main(){ int a,*p;p=&a;scanf("%d",p);printf("%x\n",*p);return 0;}
绛旓細1銆佹墦寮visualC++6.0-鏂囦欢-鏂板缓-鏂囦欢-C++SourceFile銆2銆杈撳叆棰勫鐞嗗懡浠ゅ拰涓鍑芥暟锛歩nclude<stdio.h> /*杈撳叆杈撳嚭澶存枃浠*/ voidmain()/*绌虹被鍨嬶細涓诲嚱鏁*/ 3銆佸畾涔夊彉閲忓拰鏁扮粍鐨勬暟鎹被鍨嬪苟杈撳叆涓涓崄杩涘埗锛歩ntb[16],x,k,r,i;/*瀹氫箟鍙橀噺鍜屾暟缁勭殑鏁版嵁绫诲瀷涓烘暣鍨*/ printf("杈撳叆涓涓崄杩涘埗:"...
绛旓細"F");break;default: printf("%d",arr[i]);}printf("\n\n\n"); } int main() {int num,choo; loop: printf("璇烽夋嫨鍔熻兘锛0.閫鍑 1.鍗佽繘鍒惰浆浜岃繘鍒 2.鍗佽繘鍒惰浆鍏繘鍒 3.鍗佽繘鍒惰浆鍗佸叚杩涘埗\n");scanf("%d",&choo);switch (choo){case 1:printf("璇杈撳叆瑕佽浆鎹鐨勫崄杩涘埗鏁...
