求c语言自定义方法，数字转字符串，八位长 不足八位前面要补上0 ，前面还要有正负号 C语言如何将字符串转换成8位二进制ASCii码？
\u7528c\u8bed\u8a00\u5982\u4f55\u5728\u6570\u5b57\u524d\u81ea\u52a8\u88650#include
usingnamespacestd;
voidmain()
{
inthour=9;
characHour[8]={0};
sprintf(acHour,"%02d",hour);
cout<<acHour;
}
\u6269\u5c55\u8d44\u6599
C\u8bed\u8a00\u57fa\u672c\u8bed\u6cd5
\u5728C\u7a0b\u5e8f\u4e2d\uff0c\u5206\u53f7\u662f\u8bed\u53e5\u7ec8\u6b62\u7b26\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u6bcf\u4e2a\u5355\u72ec\u7684\u8bed\u53e5\u5fc5\u987b\u4ee5\u5206\u53f7\u7ed3\u675f\u3002\u5b83\u8868\u793a\u4e00\u4e2a\u903b\u8f91\u5b9e\u4f53\u7684\u7ed3\u675f\u3002\u4ee5\u4e0b\u662f\u4e24\u4e2a\u4e0d\u540c\u7684\u9648\u8ff0printf("Hello,World!\n");return0;
\u6ce8\u91ca\u5c31\u50cf\u5e2e\u52a9C\u7a0b\u5e8f\u4e2d\u7684\u6587\u672c\u4e00\u6837\uff0c\u7f16\u8bd1\u5668\u4f1a\u5ffd\u7565\u5b83\u4eec\u3002\u5b83\u4eec\u4ee5/*\u5f00\u5934\u5e76\u4ee5\u5b57\u7b26*/\u7ed3\u5c3e\uff0c\u5982\u4e0b\u6240\u793a/*myfirstprograminC*/\uff0c\u4e0d\u80fd\u5728\u6ce8\u91ca\u4e2d\u6dfb\u52a0\u6ce8\u91ca\uff0c\u4e5f\u4e0d\u4f1a\u5728\u5b57\u7b26\u4e32\u6216\u5b57\u7b26\u6587\u5b57\u4e2d\u51fa\u73b0\u3002
\u5c31\u662f\u5c06\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u7684\u7a0b\u5e8f\uff0c\u56e0\u4e3a\u5b57\u7b26\u5bf9\u5e94\u7684ascii\u90fd\u662f\u5341\u8fdb\u5236\uff0c\u6240\u4ee5\u5c06\u5176\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5c31\u884c\uff0c\u53ef\u4ee5\u53c2\u8003\u5982\u4e0b\u7684\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236
int i, x, n, data[16], index=0;
scanf("%d%d", &x, &n);
for(i=0; i<16; i++)
data[i] = 0;
printf("%d\u5bf9\u5e94\u7684%d\u8fdb\u5236\u4e3a\uff1a", x, n); // n=2\uff0c\u8868\u793a\u4e8c\u8fdb\u5236
while(x>0)
{
data[index] = x%n;
x = x/n;
index++;
}
for(i=index-1; i>=0; i--)
printf("%d", data[i]);
printf("\n");
void test()
{
char ch[10]={'0','0','0','0','0','0','0','0','0','\0'};
char modl[10]={'0','1','2','3','4','5','6','7','8','9'};
int n;
int i=0;
//scanf("%d",&n);
n=12345;
i=8;
//设符号位
if(n>0)ch[0]='+';
else
{
ch[0]='-';n=-n;
}
do
{
ch[i]=modl[n%10];
i--;
n=n/10;
}while(n!=0);
printf("%s\n",ch);
}
sprintf(buff,"%08ld",v);
绛旓細include<stdio.h> void IntToStr(int *i, char *c, int len){//i涓烘暣褰㈡暟缁锛宑涓鸿瀛樻斁瀛楃涓鐨勬暟缁勶紝len涓烘暣褰㈡暟缁勫厓绱犱釜鏁 int k;char tmp[10];for(k=0;k<len;k++){ itoa(i[k],tmp,10);strcat(c,tmp);int main()鎴栵細include <string.h> int main() // 杩欓噷涓轰簡鏂逛究鐩存帴鐢...
绛旓細鍙互浣跨敤sprintf鍑芥暟瀹炵幇鍔熻兘銆俿printf鐨勫０鏄庝负 int sprintf(char *dst, const char * format_str...);鍏跺姛鑳戒负:灏...閮ㄥ垎鐨勫弬鏁帮紝鎸夌収format_str鐨勮姹傦紝杈撳叆鍒癲st涓傞渶瑕佹牴鎹鏁板瓧鐨勭被鍨嬶紝浣跨敤format_str銆傚鏁村瀷(int)鐨勪娇鐢ㄦ柟寮忎负 sprintf(buf, "%d", a);濡傛灉a涓123,閭ｄ箞buf涓殑瀛楃涓涓"123...
绛旓細鍔 鑳:灏嗗弻绮惧害娴偣鍨鏁拌浆鎹负瀛楃涓诧紝杞崲缁撴灉涓笉鍖呮嫭鍗佽繘鍒跺皬鏁扮偣 鐢 娉:char *ecvt(double value, int ndigit, int *decpt, int *sign);璇︾粏瑙ｉ噴锛歟cvt鍑芥暟鎶婁竴涓弻绮惧害娴偣鏁拌浆鎹㈡垚涓涓瓧绗︿覆銆倂alue鍙傛暟鏄杞崲鐨勬诞鐐规暟銆傝繖涓嚱鏁板瓨鍌ㄦ渶澶歯digit涓暟瀛楀间綔涓轰竴涓瓧绗︿覆,骞舵坊鍔犱竴涓┖鏁...
绛旓細'0';itoa(n-(n/x)*x, des+1);} else{ des = '\0';} } void itora(int n, char* des){ des++ = n > 0 ? itora(n/10, des), n % 10 + '0' : '\0';} int main(){ char b[10], c[10];itoa(12345, b);itora(12345, c);printf("%s %s", b, c);} ...
绛旓細std;int main() { string s; int a = 123; char t[100]; sprintf(t, "%d", a); s = t; cout<<s<<endl;}string 涓嶆槸鍩烘湰鏁版嵁绫诲瀷锛8涓熀鏈被鍨嬫槸锛歜yte锛宻hort,int,long,float,double,char,boolean string 鏄釜瀵硅薄锛屾槸寮曠敤绫诲瀷 c璇█涓娌℃湁绫荤殑姒傚康锛宑++涓墠鏈夈
绛旓細1銆佹柊寤轰竴涓 瀛楃涓鏁扮粍鐨瀹氫箟涓庤緭鍑 椤圭洰銆2銆佹坊鍔犱竴涓 str.c 鏂囦欢銆3銆佸寘鍚玸tdio.h鍜宻tdlib.h澶存枃浠躲4銆佽緭鍏ain鍑芥暟涓讳綋锛宻ystem()鍜岃繑鍥炲笺5銆佸畾涔変竴涓瓧绗︿覆鍙橀噺str銆6銆佷娇鐢╬rintf()鍑芥暟杈撳嚭瀛楃涓插彉閲弒tr銆7銆佽繍琛岀▼搴忥紝鏌ョ湅杈撳嚭缁撴灉銆
绛旓細C璇█瀛楃涓殑鏁板瓧0-9鏄敤Ascii鐮佽〃绀虹殑锛屽鏋滃凡鐭ヤ竴涓瓧绗﹁〃绀虹殑鏁板瓧锛閭ｄ箞鐢ㄥ叾鍑忓幓瀛楃'0'鐨凙scii鐮佸嵆鍙傛瘮濡傦紝宸茬煡 char a鏄敤瀛楃琛ㄧず鐨勬暟瀛楋紝鍗砤婊¤冻浠ヤ笅鏉′欢锛歛 >= '0' && a <= '9'閭ｄ箞鐢ㄤ笅鍒楀懡浠ゅ氨鍙皢鍏杞寲涓烘暟瀛 a = a - '0';鍏蜂綋鐪嬭繖涓繖涓緥浜嗭紝灏嗕竴涓瀛楃涓鏁扮粍杞寲涓...
绛旓細4銆佷娇鐢ㄧず渚嬶細short a=1;int b=2;long c=3;float d=4;char buf[100];sprintf(buf, "%hd %d %ld %f",a,b,c,d);//鎸夌収鏍煎紡锛屽皢鍥涗釜鍙橀噺瀛樺偍鍦瀛楃涓涓傛墽琛屽悗锛宐uf涓瓧绗︿覆涓"1 2 3 4.000000"銆傛牸寮忓瓧绗︿覆浣跨敤鏂规硶涓庤緭鍑哄嚱鏁皃rintf鐩稿悓銆
绛旓細include <stdio.h> void Func(int n){ int arr[20];char str[20];int i = 0;while(n != 0){ int k = n % 10;n = n / 10;arr[i] = k;i++;} for(int j = 0; j < i; j++){ str[j] = arr[i - 1 - j] + '0';} str[i] = '\0';printf("%s\n",...
绛旓細c璇█涓瓧绗鍨嬬敱ascii鐮佽〃绀虹殑 鏁板瓧0鐨刟scii鏄48锛1鏄49.銆傘傘傚疄渚嬶細include<Stdio.h> main(){int a;a=53; //53鏄5鐨刟scii鐮 printf("%c",a);//杩欓噷鏄杞崲鐨勫叧閿紝浠ュ瓧绗﹀瀷杈撳嚭%c }
