C语言字符串转为16进制字符串 c语言输入一个字符串转换为十六进制并输出
\u5982\u4f55\u7ed9\u4e00\u4e2aC\u8bed\u8a00\u5b57\u7b26\u4e32\u8f6c16\u8fdb\u5236\u6570\u7684\u51fd\u6570\uff1f\u591a\u9ebb\u70e6\u554a\uff01
\u770b\u597d\u4e86\uff1a
#include
int a;
char *str="1Af";
int main()
{
sscanf(str,"%x",&a);//%x\u4e3a\u8bfb\u516516\u8fdb\u5236\u6570\uff0c\u5927\u5c0f\u5199\u5747\u53ef\u3002sscanf\u662f\u4ecec\u5b57\u7b26\u4e32\u4e2d\u8bfb\u5165\u53d8\u91cf\u3002
printf("%i",a);
return 0;
}
#include int IsHexChar(char ch){if((ch>='0' && ch='a' && ch='A' && ch<='F'))return 1;elsereturn 0;}int main(){char str[1000] = "123342abcdAFB1H";int cnt = 0;int i;printf("input str:\n");//gets(str);i = 0;while(str[i]&&str[i+1]){if(IsHexChar(str[i]) && IsHexChar(str[i+1])){cnt++;printf(cnt==1?"0x%c%c":", 0x%c%c", str[i], str[i+1]);i++;i++;}elsebreak;}printf("\ncnt = %d\n", cnt);return 0;}
/*
我们正在组建局域网
CE D2 C3 C7 D5 FD D4 DA D7 E9 BD A8 BE D6 D3 F2 CD F8
Press any key to continue
*/
#include <stdio.h>
#include <string.h>
char *Change(char *t,char *s) {
char i,chs;
for(i = 0; s[i]; ++i) {
chs = s[i] & 0X0F;
t[3 * i + 2] = ' ';
if(chs > 9) t[3 * i + 1] = chs - 10 + 'A';
else t[3 * i + 1] = chs + '0';
chs = (s[i] & 0XF0) >> 4;
if(chs > 9) t[3 * i] = chs - 10 + 'A';
else t[3 * i] = chs + '0';
}
t[3 * i] = '\0';
return t;
}
int main() {
char *s = "我们正在组建局域网",t[60]; //
printf("%s
",s);
printf("%s
",Change(t,s));
return 0;
}
char* str = "我们";
char t[20];
sprintf(t, "%X %X %X %X
", str[0]&0xff,str[1]&0xff,str[2]&0xff,str[3]&0xff);
http://wenku.baidu.com/view/31b1c242336c1eb91a375dc7.html
希望可以帮助到你
char*t;
for(j=0;j<=i;j++)
t[j]=chj[i];
printf("%0X",t);
#include<stdio.h>
void main()
{
char* str = "我们";
printf("%X %X %X %X\n",str[0]&0xff,str[1]&0xff,str[2]&0xff,str[3]&0xff);
}
绛旓細char* str = "鎴戜滑";char t[20];sprintf(t, "%X %X %X %X\n", str[0]&0xff,str[1]&0xff,str[2]&0xff,str[3]&0xff);
绛旓細鍏跺疄杩樻湁涓绉嶆柟娉曪紝灏辨槸鐢ㄤ竴涓垵濮嬪寲涓0~9~a~f鐨勫瓧绗︿覆鏁扮粍锛屼篃灏辨槸涓涓崄鍏繘鍒跺搴旇〃锛岀敤杩欎釜瀵瑰簲琛ㄥ嵆鍙畻鍑轰竴涓崄鍏繘鍒跺瓧绗︿覆鐨勬暟鍊硷紝浣嗚繖绉嶅彂鍙戝お楹荤儲浜嗭紝涓嶆帹鑽愪娇鐢ㄣ
绛旓細include <stdio.h>int IsHexChar(char ch){if((ch>='0' && ch<='9') || (ch>='a' && ch<='f') ||(ch>='A' && ch<='F'))return 1;elsereturn 0;}int main(){char str[1000] = "123342abcdAFB1H";int cnt = 0;int i;printf("input str:\n");//gets(str);i =...
绛旓細int main(){ char* str="vF.2.3.a.b.C.d";char temp[5];char hex[20][5]={0};int i,j=0,a,k=0;for(i=0;str[i]!='\0';i++){ if('A'<=str[i]&&str[i]<='F'||'a'<=str[i]&&str[i]<='f'||'0'<=str[i]&&str[i]<='9'){ temp[j++]=str[i];}e...
绛旓細2銆佸湪test.cpp鏂囦欢涓紝杈撳叆C璇█浠ｇ爜锛歝har *pKey = "AA1F1905A8F3E4D3C3C536FE615C93BC";for (int i = 0; i < strlen(pKey) - 1; i += 2) { printf("0x%c%c\n", pKey[i], pKey[i+1]);} 3銆佺紪璇戝櫒杩愯test.cpp鏂囦欢锛屾鏃舵垚鍔熷皢瀛楃涓鏁扮粍杞负浜16杩涘埗鐨勫舰寮忚繘琛屼簡杈撳嚭銆
绛旓細voidmain(){ char*p="0x1b";char*str;longi=strtol(p,&str,16);printf("%d\r\n",i);} //杈撳嚭鍊间负27 鍙傛暟base浠ｈ〃閲囩敤鐨勮繘鍒舵柟寮忥紝濡俠ase鍊间负10鍒欓噰鐢10杩涘埗锛岃嫢base鍊涓16鍒欓噰鐢16杩涘埗绛夈傚綋base鍊间负0鏃跺垯鏄噰鐢10杩涘埗鍋杞崲锛屼絾閬囧埌濡傗0x鈥欏墠缃瀛楃鍒欎細浣跨敤16杩涘埗鍋氳浆鎹侀亣鍒扳0鈥...
绛旓細a;\x0d\x0achar *str="1Af";\x0d\x0aint main()\x0d\x0a{\x0d\x0a sscanf(str,"%x",&a);//%x涓鸿鍏16杩涘埗鏁帮紝澶у皬鍐欏潎鍙俿scanf鏄粠c瀛楃涓涓鍏ュ彉閲忋俓x0d\x0a printf("%i",a);\x0d\x0a return 0;\x0d\x0a} ...
绛旓細dst:鐩爣瀛楃涓 scr:婧愬瓧绗︿覆 鎴戝洖鍘昏瘯浜嗕竴涓嬶紝涓嶈 涓鑸殑sprintf(*dst,"%s"锛*src)鑳芥妸src杞崲鎴鎸囧畾鐨勬牸寮 鍙槸sprintf(*dst,"%x"锛*src)鏃讹紝*dst瀛樹簡鍦板潃锛伮蜂慨鏀逛簡涓涓嬶紝浠ヤ笅鏄緥瀛愶紝鏈夋晥鏋滀簡锛歩nclude "stdafx.h"include<stdio.h> void main(){ char a[9]="a1234",b[20], *p...
绛旓細灏嗕綘瑕佽浆鍖栫殑鏁板间緥濡00010001浠庡彸寮濮嬫暟,4浣嶆暟涓娆,姣4浣杞寲鎴16杩涘埗鐨瀛楃灏卞彲浠ヤ簡.4涓杞16杩涘埗鍙互浣跨敤绌蜂妇娉,0001=1,0010=2,...1001=9,1010=A,...,1111=F 鎬诲叡鍐16涓氨OK浜!
绛旓細include <stdio.h> include <stdlib.h> void main(){ char buff[]="123456789abcdefghijk";int len = sizeof(buff);for(int i=0;i<len-1;i++)printf("%x ",buff[i]);}
