C语言，第3题，提取字符串中的英文字母 c语言中怎样统计字符串中包含英文字母的个数？
C\u8bed\u8a00\u95ee\u9898\uff1a\u5982\u4f55\u4ece\u4e00\u4e2a\u7531\u5b57\u6bcd\u548c\u6570\u5b57\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u51fa\u76f8\u5e94\u7684\u5b57\u6bcd\uff1f#include int main(int argc, char const *argv[]){ char line[1024] = "\0"; // = 'a' and line[i] = 'A' and line[i] <= 'Z') ) printf("%c",line[i]); } printf("\n"); return 0;}\u8fd0\u884c\uff1a
Cat808her_+in_+e87Catherine
c\u8bed\u8a00\u4e2d\u8981\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u82f1\u6587\u5b57\u6bcd\u7684\u4e2a\u6570\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u5185\u5bb9\uff1a
main()
{
char str[100],*p;
int num[4],i;
p=str;
gets(str);
for(i=0;i<4;i++)
num[i]=0;
for(;*p!='\0';p++)
{
if((*p='a')||(*p='A')) num[0]++;
else if(*p==' ') num[1]++;
else if((*p='0')) num[2]++;
else num[3]++;
}
printf("%d %d %d %d\n",num[0],num[1],num[2],num[3]);
}
\u6269\u5c55\u8d44\u6599\uff1a\u5728\u5199\u4ee3\u7801\u7684\u8fc7\u7a0b\u4e2d\u9700\u8981\u6ce8\u610f\uff1a
void main()\u7684\u7528\u6cd5\u5e76\u4e0d\u662f\u4efb\u4f55\u6807\u51c6\u5236\u5b9a\u7684\u3002 C\u8bed\u8a00\u6807\u51c6\u8bed\u6cd5\u662fint main\uff0c\u4efb\u4f55\u5b9e\u73b0\u90fd\u5fc5\u987b\u652f\u6301int main(void) { /* ... */ }\u548cint main(int argc, char* argv[]) { /* ... */ }\u3002
\u7c7b\u4f3c\u4e8ea+=a++;\u6216\u8005(i++)+(i++)+(i++)\u5c5e\u4e8e\u672a\u5b9a\u4e49\u884c\u4e3a\uff0c\u5e76\u4e0d\u662f\u8bf4c\u8bed\u8a00\u4e2d\u8fd8\u672a\u5b9a\u4e49\u8fd9\u79cd\u884c\u4e3a\uff0c\u5b83\u65e9\u6709\u5b9a\u8bba\uff0c\u5b83\u7684\u7ed3\u679c\u53d6\u51b3\u4e8e\u7f16\u8bd1\u5668\u5b9e\u73b0\uff0c\u4e0d\u8981\u5199\u8fd9\u6837\u7684\u4ee3\u7801\u3002
for循环扫描字符串，
判断ASCII码在a~z，A~Z之间的
取出，放在新的字符数组里
输出新的字符串
绛旓細for寰幆鎵弿瀛楃涓诧紝鍒ゆ柇ASCII鐮佸湪a~z锛孉~Z涔嬮棿鐨 鍙栧嚭锛鏀惧湪鏂扮殑瀛楃鏁扮粍閲 杈撳嚭鏂扮殑瀛楃涓
绛旓細include<stdio.h>#include<string.h>int main(){ char s[20]; int i; printf("杈撳叆鍖呭惈鏁板瓧鐨瀛楃涓锛"); scanf("%s",s); printf("鍏朵腑鏁村瀷鏁板瓧浣嶄负锛"); for(i=0;i<strlen(s);i++) { if(s[i]>=48 && s[i]<=57) { printf("%d",(int)s[...
绛旓細c[len] = '\0';num = atoi(c);//灏瀛楃涓杞寲涓烘暟瀛 b[k++] = num; //鐢ㄦ暟缁勫瓨鏀炬埅鍙栦笅鏉ョ殑鏁板瓧 flag = 0;// 鏍囪瘑0浠ｈ〃杩涘叆浜嗛潪鏁板瓧瀛楃 len = 0;} } clen = k;} void main (void){ char a[M];int b[M];//鐢ㄦ潵瀛樻斁浠庡瓧绗︿覆鎴彇涓嬫潵鐨勬暟瀛 int i = 0;int k ;print...
绛旓細int main(){ int sum =0;int flag = 0;char str[100];cout << "杈撳叆瀛楃涓:";cin >> str;int len = strlen(str);cout << str << endl;char temp[100];memset(temp, 0, sizeof(temp));int n=0;for (int i=0; i<len; i++ ){ if (str[i]>='0' && str[i] <= '...
绛旓細鐢c璇█鎻愬彇瀛楃涓蹭腑鐨鏁板瓧鐨勬搷浣滃涓嬶細1銆侀鍏堟墦寮visual studio杞欢骞跺垱寤轰竴涓柊鐨刢璇█鏂囦欢锛屽涓嬫墍绀恒2銆佺劧鍚庡鍏C璇█鏂囦欢椤堕儴鐨勫簱鍐呭锛屽涓嬫墍绀恒3銆佺劧鍚庝娇鐢╯canf鍑芥暟鎺ユ敹鐢ㄦ埛杈撳叆鐨勫瓧绗︿覆銆4銆佺劧鍚庝娇鐢╬rintf鍑芥暟鎵撳嵃鐢ㄦ埛杈撳叆銆5銆佽繍琛岀▼搴忓悗锛屽脊鍑轰笅鍥炬墍绀虹殑鍛戒护鐣岄潰锛岃嚜鍔ㄦ帴鏀惰緭鍏ュ唴瀹癸紝鎸夊師鏍...
绛旓細鐢ㄦ爣鍑c搴涓殑瀛楃涓鎿嶄綔鍑芥暟灏卞彲浠ヤ簡 闇瑕#include "string.h"甯哥敤鐨勫嚱鏁版湁strcpy,strlen,strcmp,strchr,strstr绛夌瓑
绛旓細鏌ユ壘瀛楃涓蹭腑鐨鏁板瓧骞惰繑鍥炲叾涓暟锛歩nclude <stdio.h>int main(void){char str[1000];int i, count, a[100];int p, q, r;int tmp;gets(str);r = 0;count = 0;while(1){while(str[r] && (str[r]<'0' || str[r]>'9'))r++;//璺宠繃闈炴暟瀛 if(str[r]){p = r;//p鎸囧悜...
绛旓細intmain(){ intz=0;intt,i;int*p;intm=0;ints=0;chara[10];//杈撳叆涓涓瓧绗︿覆鍒癮[6]printf("璇疯緭鍏ヤ竴涓瓧绗︿覆\n");scanf("%s",a);//杈撳叆瀛楃涓 for(i=0;i<10;i++)//璁＄畻a[6]涓殑鏁板瓧涓暟 { if(a[i]>='0'&&a[i]<='9')m++;} if(m==0)printf("瀛楃涓蹭腑娌℃湁...
绛旓細r=0; while(s[i]!='\0'){ if(s[i]>='0'&& s[i]<='9') r=r*10+(s[i]-'0'); ++i; } // r*=513; printf("杈撳叆涓:s=%s\n鎻愬彇鏁板瓧:r=%ld\n缁撴灉:r*513=%ld\n",s,r,r*513); return 0;} ...
绛旓細璇勬祴路绯荤粺鏄剧ず鐨勬槸wrong answer鍚楋紵濡傛灉鏄疨E锛岃淇敼杈撳嚭鏍煎紡銆傝繖閲屾垜鎸囧嚭涓绉嶆儏鍐碉紝灏辨槸姣斿鎴戣緭鍏0123a 杩欑粍瀛楃涓诧紝閭ｆ寜鐓ч鐩殑瑕佹眰搴旇杈撳嚭鐨勬槸123锛岃屼綘杈撳嚭鐨勮偗瀹氭槸0123銆傛垜涓嶇煡閬撹繖鏄笉鏄綘涓嶉氳繃鐨勬祴璇曠敤渚嬶紝鎴戜篃娌℃湁浣犳祴璇曞钩鍙扮殑鍦板潃锛屾病鍔炴硶楠岃瘉锛屽氨褰撴槸鎴戠粰浣犱竴鐐瑰缓璁惂銆
